Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"nhan hoc lap snippets" » "nha hoc lap snippets", "nhan hoa lap snippets", "than hoc lap snippets", "nhan hoc tap snippets", "nhan hoc lam snippets", "nhan doc lap snippets", "nhan hoc lap 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: (((("nhan hoc lap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan hoc lap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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