Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dung sach xa snippets" » "duong sach xa snippets", "dung sai xa snippets", "dung cac xa snippets", "dung sach dao snippets", "dung sach nha snippets", "dung sach bai snippets", "dung sach xa 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: (((("dung sach xa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung sach xa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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