Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"lap san quoc snippets" » "lap han quoc snippets", "lap dan quoc snippets", "lap tran quoc snippets", "lam san quoc snippets", "lap ban quoc snippets", "la san quoc snippets", "lap san quoc 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: (((("lap san quoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lap san quoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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