Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dao tinh cac snippets" » "dao tinh code snippets", "dac tinh cac snippets", "dao minh cac snippets", "dao dinh cac snippets", "dao tinh cach snippets", "dao trinh cac snippets", "dao tich cac 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: (((("dao tinh cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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