Perhaps you should try some spelling variations:
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets", "python using data slippers"
"thu hang ma snippets" » "thi hang ma snippets", "thuc hanh ma snippets", "thu huong ma snippets", "thu hang va snippets", "thu hang ca snippets", "thu tang ma snippets", "thu hang ma slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("thu hang ma snippets") or ("python using data snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu hang ma snippets") OR ("python using data snippets"))) OR ("locating bug code snippets")).
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