Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"nhung le ly snippets" » "nhung ke ly snippets", "nhung se ly snippets", "nhung loi ly snippets", "nhung ly ly snippets", "nhung le le snippets", "nhung de ly snippets", "nhung le ly 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: (((("nhung le ly snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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