Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"mot doc sach snippets" » "mot hoc sach snippets", "mot toc sach snippets", "mot nuoc sach snippets", "mot goc sach snippets", "mot doi sach snippets", "mot cuoc sach snippets", "mot doc sach 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: (((("mot doc sach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mot doc sach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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