Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khoa tap hat snippets" » "khoa tai hat snippets", "khoa than hat snippets", "hoc tap hat snippets", "khoa tap vat snippets", "khoa lap hoat snippets", "khoa cap nhat snippets", "khoa tap hat 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: (((("khoa tap hat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoa tap hat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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