Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung mo vai slippers" » "dung co vai slippers", "dung cho vai slippers", "dung von vai slippers", "dung mot vai slippers", "dung mo tai slippers", "dung mo va slippers", "dung mo vai slippery", "dung mo vai 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 mo vai 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 mo vai slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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