Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"vat dung tan snippets" » "van dung tan snippets", "va dung tan snippets", "viet dung tan snippets", "vat dung toan snippets", "vat duong tan snippets", "vat dung tai snippets", "vat dung 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: (((("vat dung 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: (((("vat dung tan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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