Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khoa va tham snippets" » "khoan va tham snippets", "khoa ma tham snippets", "hoa va tham snippets", "khoa van tham snippets", "khoa va cham snippets", "khoa va thanh snippets", "khoa va tham 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: (((("khoa va tham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoa va tham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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