Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong cac hoc snippets" » "cong cac code snippets", "cuong cac hoc snippets", "cong tac hoc snippets", "cong cau hoc snippets", "cong cach hoc snippets", "cong cac hop snippets", "cong bac hoc 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 cac hoc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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