Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"cho thu sach snippets" » "cho tu sach snippets", "cho thuat sach snippets", "cho thuoc sach snippets", "cho thue sach snippets", "cho chu sach snippets", "cho phu sach snippets", "cho thu 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: (((("cho thu 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: (((("cho thu sach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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