Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung vinh cu snippets" » "dung vinh code snippets", "dang vinh cu snippets", "dung ninh cu snippets", "quang vinh cu snippets", "dung vinh cuu snippets", "dung dinh cu snippets", "dung dinh cuu 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: (((("dung vinh cu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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