Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"doi quy quan snippets" » "doi qua quan snippets", "doi huy quan snippets", "doi quy tuan snippets", "dot quy quan snippets", "doi duy quan snippets", "noi quy quan snippets", "doi quy quan 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: (((("doi quy quan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi quy quan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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