Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"hoc cuon lau snippets" » "hoc con lau snippets", "hoc chuong lau snippets", "hoc luong lau snippets", "hoc buon lau snippets", "hoc buon lai snippets", "hoc muon lam snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("hoc cuon lau 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 cuon lau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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