diff --git a/README.md b/README.md
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+++ b/README.md
@@ -13,6 +13,8 @@
 
 6. Rspec: [Vietnamese](https://github.com/framgia/Training-Guideline/blob/master/Rails/rspec.md), [English](https://github.com/framgia/Training-Guideline/blob/master/Rails/rspec_en.md)
 
+7. [Các kỹ thuật nâng cao áp dụng cho dự án thực tế ở CEV](https://github.com/framgia/Training-Guideline/blob/master/Rails/advance_knowledge.md)
+
 ### II. PHP
 1. PHP: [Vietnamese](https://github.com/framgia/Training-Guideline/blob/master/PHP/php.md), [English](https://github.com/framgia/Training-Guideline/blob/master/PHP/php.en.md)
 
diff --git a/Rails/advance_knowledge.md b/Rails/advance_knowledge.md
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+## 1. Api
+  Thông tin: https://www.ibm.com/topics/api#:~:text=An%20API%2C%20or%20application%20programming,to%20communicate%20with%20each%20other.
+  Cách áp dụng trong rails: https://guides.rubyonrails.org/api_app.html
+## 2. Jwt
+  Thông tin: https://jwt.io/introduction
+  Cách áp dụng trong rails: https://viblo.asia/p/jwt-and-using-jwt-in-rails-yMnKMq3QK7P
+## 3. redis
+  Thông tin: https://redis.io/docs/
+  Áp dụng trong rails: https://viblo.asia/p/toi-uu-rails-app-voi-redis-nwmkyEZMkoW
+## 4. docker
+  Thông tin: https://docs.docker.com/get-started/
+## 5. aws
+  Thông tin: https://docs.aws.amazon.com/
+## 6. elasticsearch
+  Thông tin: https://www.elastic.co/what-is/elasticsearch
+  Áp dụng vào trong rails: https://viblo.asia/p/tich-hop-elastic-search-trong-ung-dung-rails-6BAMYk3Pvnjz
+## 7. websocket
+  Thông tin: https://viblo.asia/p/tim-hieu-ve-websocket-voi-rails-BYjv44yPvxpV
+  videos tutorial: https://www.youtube.com/watch?v=8XECUoTyQrI