Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"lon nhat tan snippets" » "lan nhat tan snippets", "cong nhat tan snippets", "dong nhat tan snippets", "lon nhat ban snippets", "lon nhat trang snippets", "lon nhat hanh snippets", "lon nhat tan 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: (((("lon nhat tan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lon nhat tan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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