Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan duc man slippers" » "pham duc man slippers", "phan tu man slippers", "phan dau man slippers", "phan duc manh slippers", "phan duc tan slippers", "phan duc mau slippers", "phan duc man slippery", "phan duc man grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan duc man slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("phan duc man slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.