Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khac so tan snippets" » "khac son tan snippets", "khac do tan snippets", "khac co tan snippets", "khac so than snippets", "khac so toan snippets", "khac so tay snippets", "khac so tan 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: (((("khac so tan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khac so tan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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