Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong noi cac snippets" » "cong noi code snippets", "cong nhoi cac snippets", "cong goi cac snippets", "cong soi cac snippets", "cong voi cac snippets", "cong hoi cac snippets", "cong nom 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: (((("cong noi cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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