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 sach snippets" » "pha hoc sinh snippets", "pha hoc cac snippets", "pha hoc anh snippets", "phap hoc sach snippets", "phau hoc sach snippets", "nha hoc sach snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("pha hoc sach snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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