Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"yun wang cau snippets" » "yun wang code snippets", "yu wang cau snippets", "yun pang cau snippets", "ying wang cau snippets", "yun hang cau snippets", "yun bang cau snippets", "yun nang cau 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: (((("yun wang cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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