Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"hen hoc khoi snippets" » "hen hoc khoa snippets", "hen hoc hoa snippets", "hen hoc noi snippets", "hen ho khoi snippets", "den hoc khoi snippets", "khien hoc khoi snippets", "hen hoc khoi 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: (((("hen hoc khoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hen hoc khoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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