Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoc san chi snippets" » "hoc san code snippets", "hoc dan chi snippets", "toc san chi snippets", "hoc can chi snippets", "hoc van chi snippets", "hoc luan chi snippets", "hoc toan chi 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 san chi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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