Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tiep cua phu snippets" » "tiep can phu snippets", "dieu cua phu snippets", "tap cua phu snippets", "tiep cua chu snippets", "tiep cua khu snippets", "tiep cua phi snippets", "tiep cua phu 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: (((("tiep cua phu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tiep cua phu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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