Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tung van mao slippers" » "trung van mao slippers", "tang van mao slippers", "dung van mao slippers", "tung van dao slippers", "tung van bao slippers", "tung van hao slippers", "tung van mao slippery", "tung van mao 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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• Performing a fuzzy search may retrieve terms with similar spellings: (((("tung van mao slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tung van mao slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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