Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dan viet cau snippets" » "dan viet code snippets", "danh viet cau snippets", "san viet cau snippets", "dao viet cau snippets", "dan viet chau snippets", "dan viet ca snippets", "dan viet chu 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: (((("dan viet cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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