Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan toan lee snippets" » "van toan lee snippets", "dan than lee snippets", "manh toan lee snippets", "dan tan lee snippets", "dan tuan le snippets", "dan toan ly snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dan toan lee snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan toan lee snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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