Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tran quy tan snippets" » "tran duy tan snippets", "tran quoc tan snippets", "tran thuy tan snippets", "tran quy tuan snippets", "tran quy tac snippets", "tran quy tin snippets", "tran quy 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: (((("tran quy 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: (((("tran quy tan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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