Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"hat ve nguon snippets" » "hat va nguoi snippets", "hat ve nuoc snippets", "hat le nguoi snippets", "nhat ve nguon snippets", "hat vi nguon snippets", "hat va nguon snippets", "hat ve nguon 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: (((("hat ve nguon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hat ve nguon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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