Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"nham thu nu snippets" » "nham thuc nu snippets", "nam thu nu snippets", "pham thu nu snippets", "nham phu nu snippets", "nham thu tu snippets", "nham thi nu snippets", "nham thu nu slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("nham thu nu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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