Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dau hoc sach snippets" » "dau hoc sinh snippets", "dau hoc cac snippets", "dau hoc anh snippets", "dai hoc sach snippets", "du hoc sach snippets", "dan hoc sach snippets"

Try widening your search to All Fields.

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