Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"tao duc dung snippets" » "tao duc hung snippets", "tao duc cuong snippets", "tao duc phung snippets", "tao duoc dung snippets", "dao duc dung snippets", "tho duc dung snippets"

Try widening your search to All Fields.

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