Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cum dan hoc snippets" » "cum dan code snippets", "cum danh hoc snippets", "cua dan hoc snippets", "cu dan hoc snippets", "cum van hoc snippets", "cum dan toc snippets", "cum dai hoc snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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