Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi phan duc slippers" » "doi nhan duc slippers", "hoi phan duc slippers", "doc phan duc slippers", "doi pham duc slippers", "doi phan tu slippers", "doi phan dau slippers", "doi phan duc slippery", "doi phan duc grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("doi phan duc slippers"))) OR ("locating bug code snippets")).
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