Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"pha hoc hien snippets" » "phap hoc hien snippets", "phau hoc hien snippets", "nha hoc hien snippets", "pha hoc bien snippets", "pha hoc vien snippets", "pha hoc hieu snippets"

Try widening your search to All Fields.

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