Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"toc noi cac snippets" » "toc noi code snippets", "hoc noi cac snippets", "toc nguoi cac snippets", "toeic noi cac snippets", "toc voi cac snippets", "toc hoi cac snippets", "toc 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: (((("toc noi cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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