diff --git a/translations/README-ru.md b/translations/README-ru.md
index afecf44..f56603d 100644
--- a/translations/README-ru.md
+++ b/translations/README-ru.md
@@ -674,8 +674,8 @@ Google не возьмёт тебя на работу.
         - dequeue: O(1) (связанный список и массив)
         - empty: O(1) (связанный список и массив)
 
-- ### Hash table
-    - [ ] Videos:
+- ### Хеш-таблица
+    - [ ] Видео:
         - [ ] [Hashing with Chaining (video)](https://www.youtube.com/watch?v=0M_kIqhwbFo&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb&index=8)
         - [ ] [Table Doubling, Karp-Rabin (video)](https://www.youtube.com/watch?v=BRO7mVIFt08&index=9&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb)
         - [ ] [Open Addressing, Cryptographic Hashing (video)](https://www.youtube.com/watch?v=rvdJDijO2Ro&index=10&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb)
@@ -683,7 +683,7 @@ Google не возьмёт тебя на работу.
         - [ ] [(Advanced) Randomization: Universal & Perfect Hashing (video)](https://www.youtube.com/watch?v=z0lJ2k0sl1g&list=PLUl4u3cNGP6317WaSNfmCvGym2ucw3oGp&index=11)
         - [ ] [(Advanced) Perfect hashing (video)](https://www.youtube.com/watch?v=N0COwN14gt0&list=PL2B4EEwhKD-NbwZ4ezj7gyc_3yNrojKM9&index=4)
 
-    - [ ] Online Courses:
+    - [ ] Онлайн курсы:
         - [ ] [Understanding Hash Functions (video)](https://www.lynda.com/Developer-Programming-Foundations-tutorials/Understanding-hash-functions/149042/177126-4.html)
         - [ ] [Using Hash Tables (video)](https://www.lynda.com/Developer-Programming-Foundations-tutorials/Using-hash-tables/149042/177127-4.html)
         - [ ] [Supporting Hashing (video)](https://www.lynda.com/Developer-Programming-Foundations-tutorials/Supporting-hashing/149042/177128-4.html)
@@ -691,32 +691,32 @@ Google не возьмёт тебя на работу.
         - [ ] [Core Hash Tables (video)](https://www.coursera.org/learn/data-structures-optimizing-performance/lecture/m7UuP/core-hash-tables)
         - [ ] [Data Structures (video)](https://www.coursera.org/learn/data-structures/home/week/3)
         - [ ] [Phone Book Problem (video)](https://www.coursera.org/learn/data-structures/lecture/NYZZP/phone-book-problem)
-        - [ ] distributed hash tables:
+        - [ ] распределенные хеш-таблицы:
             - [Instant Uploads And Storage Optimization In Dropbox (video)](https://www.coursera.org/learn/data-structures/lecture/DvaIb/instant-uploads-and-storage-optimization-in-dropbox)
             - [Distributed Hash Tables (video)](https://www.coursera.org/learn/data-structures/lecture/tvH8H/distributed-hash-tables)
 
-    - [ ] implement with array using linear probing
-        - hash(k, m) - m is size of hash table
-        - add(key, value) - if key already exists, update value
+    - [ ] реализация с помощью массива и приминением linear probing
+        - hash(k, m) - m размер хеш-таблицы
+        - add(key, value) - если ключ уже существует обновляем значение
         - exists(key)
         - get(key)
         - remove(key)
 
-## More Knowledge
+## Больше знаний
 
-- ### Binary search
+- ### Бинарный поиск
     - [ ] [Binary Search (video)](https://www.youtube.com/watch?v=D5SrAga1pno)
     - [ ] [Binary Search (video)](https://www.khanacademy.org/computing/computer-science/algorithms/binary-search/a/binary-search)
     - [ ] [detail](https://www.topcoder.com/community/data-science/data-science-tutorials/binary-search/)
-    - [ ] Implement:
-        - binary search (on sorted array of integers)
-        - binary search using recursion
+    - [ ] Реализация:
+        - бинарный поиск (на отсортированном числовом массиве)
+        - бинарный поиск с использованием рекурсии
 
-- ### Bitwise operations
+- ### Побитовые операции
     - [ ] [Bits cheat sheet](https://github.com/jwasham/google-interview-university/blob/master/extras/cheat%20sheets/bits-cheat-cheet.pdf) - you should know many of the powers of 2 from (2^1 to 2^16 and 2^32)
-    - [ ] Get a really good understanding of manipulating bits with: &, |, ^, ~, >>, <<
+    - [ ] Даст отличное понимание манипуляции битами с помощью: &, |, ^, ~, >>, <<
         - [ ] [words](https://en.wikipedia.org/wiki/Word_(computer_architecture))
-        - [ ] Good intro:
+        - [ ] Хорошее введение:
             [Bit Manipulation (video)](https://www.youtube.com/watch?v=7jkIUgLC29I)
         - [ ] [C Programming Tutorial 2-10: Bitwise Operators (video)](https://www.youtube.com/watch?v=d0AwjSpNXR0)
         - [ ] [Bit Manipulation](https://en.wikipedia.org/wiki/Bit_manipulation)
@@ -724,19 +724,19 @@ Google не возьмёт тебя на работу.
         - [ ] [Bithacks](https://graphics.stanford.edu/~seander/bithacks.html)
         - [ ] [The Bit Twiddler](http://bits.stephan-brumme.com/)
         - [ ] [The Bit Twiddler Interactive](http://bits.stephan-brumme.com/interactive.html)
-    - [ ] 2s and 1s complement
+    - [ ] 2s и 1s дополнения:
         - [Binary: Plusses & Minuses (Why We Use Two's Complement) (video)](https://www.youtube.com/watch?v=lKTsv6iVxV4)
         - [1s Complement](https://en.wikipedia.org/wiki/Ones%27_complement)
         - [2s Complement](https://en.wikipedia.org/wiki/Two%27s_complement)
-    - [ ] count set bits
+    - [ ] счетчик битов:
         - [4 ways to count bits in a byte (video)](https://youtu.be/Hzuzo9NJrlc)
         - [Count Bits](https://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetKernighan)
         - [How To Count The Number Of Set Bits In a 32 Bit Integer](http://stackoverflow.com/questions/109023/how-to-count-the-number-of-set-bits-in-a-32-bit-integer)
-    - [ ] round to next power of 2:
+    - [ ] округление до следующей степени 2:
         - [Round Up To Next Power Of Two](http://bits.stephan-brumme.com/roundUpToNextPowerOfTwo.html)
-    - [ ] swap values:
+    - [ ] обмен значениями:
         - [Swap](http://bits.stephan-brumme.com/swap.html)
-    - [ ] absolute value:
+    - [ ] абсолютные значения:
         - [Absolute Integer](http://bits.stephan-brumme.com/absInteger.html)
 
 ## Trees