Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoc dao voi snippets" » "hoc dao code snippets", "hoc dan voi snippets", "hoc cao voi snippets", "hoc dai voi snippets", "hoc da voi snippets", "hoc dao noi snippets", "hoc do voi snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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