Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung may bao slippers" » "dung va bao slippers", "dung tai bao slippers", "mang may bao slippers", "dung may bay slippers", "dung tay bao slippers", "dung may giao slippers", "dung may bao slippery", "dung may bao 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: (((("dung may bao slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung may bao slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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