Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc nhan mac slippers" » "luc nhat mac slippers", "cu nhan mac slippers", "tue nhan mac slippers", "luc han mac slippers", "luc nhan ma slippers", "luc nganh mac slippers", "luc nhan mac slippery", "luc nhan mac 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: (((("luc nhan mac slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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