Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"phat voi dac snippets" » "phat vi dac snippets", "pham voi dac snippets", "pho voi dac snippets", "phat voi cac snippets", "phat voi dai snippets", "phat voi dan snippets", "phat voi dac 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: (((("phat voi dac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phat voi dac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phat voi dac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
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