Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khac han tap snippets" » "khac hau tap snippets", "khac gan tap snippets", "khach hang tap snippets", "khac han tai snippets", "khac toan tap snippets", "khac nhan tai snippets", "khac han tap 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: (((("khac han tap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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