diff --git a/OJ notes/pages/Leetcode Combinations.md b/OJ notes/pages/Leetcode Combinations.md
index 6fdd983..de5d035 100644
--- a/OJ notes/pages/Leetcode Combinations.md	
+++ b/OJ notes/pages/Leetcode Combinations.md	
@@ -38,4 +38,6 @@ ___
 The link I mentioned on the links section already have a good
 explanation on the topic.
 
+In my eyes, backtracking means DFS-like recursion and searching in solving problems.
+
 ### Solution