Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"che cong cac snippets" » "che cong code snippets", "cho cong cac snippets", "chi cong cac snippets", "he cong cac snippets", "che cuong cac snippets", "che cong tac snippets", "che cong 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: (((("python using java snippets") or ("che cong cac snippets"))) or ("locating bug core snippets"))~.
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