Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung te hang slippers" » "dung he hang slippers", "dung de hang slippers", "dung le hang slippers", "dung te bang slippers", "dung ty hang slippers", "dung te hang slippery", "dung te hang 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 te hang 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 te hang slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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