Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"cho can nhan snippets" » "cho chan nhan snippets", "cho ca nhan snippets", "cho van nhan snippets", "cho cac nhan snippets", "cho phan nhan snippets", "cho cong nhan snippets"

Try widening your search to All Fields.

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