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