Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"nhan tao ban snippets" » "nhan tai ban snippets", "nhan dan ban snippets", "nhan va ban snippets", "nhan tao bac snippets", "nhan cao bang snippets", "nhan tao nhan snippets"

Try widening your search to All Fields.

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