Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"khoan va lua snippets" » "doan va lua snippets", "khoa ma lua snippets", "nhan va lua snippets", "khoan va luat snippets", "khoan ca lua snippets", "khoan vi lua snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("khoan va lua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoan va lua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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