Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tri van ngon snippets" » "tri van ngoc snippets", "tri van ngan snippets", "tri ban ngon snippets", "thi van ngon snippets", "tri va ngon snippets", "trinh van ngon snippets", "tri van ngon 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: (((("tri van ngon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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