Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khoa co len snippets" » "hoa co len snippets", "khoa cong len snippets", "khoa hoc len snippets", "khoa co nen snippets", "khoa co le snippets", "khoa co lon snippets", "khoa co len 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 co len 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 co len snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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