Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phuc va cau snippets" » "phuc va code snippets", "phuc vu cau snippets", "thuc va cau snippets", "chuc va cau snippets", "phuc van cau snippets", "phuc va cac snippets", "phuc va dau 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: (((("phuc va cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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