Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"vat duc dung snippets" » "vat duc hung snippets", "vat duc cuong snippets", "vat duc phung snippets", "vat duoc dung snippets", "van duc dung snippets", "viet duc dung snippets", "vat duc dung 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 duc dung 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 duc dung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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