Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khoa doi ta snippets" » "hoa doi ta snippets", "khoa hoi ta snippets", "khoa noi ta snippets", "khoa doi tac snippets", "khoa doi tai snippets", "khoa doi tan snippets", "khoa doi ta 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 doi ta 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 doi ta snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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