Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tra chat ngu snippets" » "tran chau ngu snippets", "tran nhat ngu snippets", "hoa chat ngu snippets", "tra nhat ngu snippets", "tra chat ngung snippets", "tra thuat ngu snippets", "tra chat ngu 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: (((("tra chat ngu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tra chat ngu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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