Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"mac quan cau snippets" » "mac quan code snippets", "tac quan cau snippets", "mai quan cau snippets", "lac quan cau snippets", "mac quang cao snippets", "mac toan cau snippets", "mac quan ha 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: (((("mac quan cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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