Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doan co cua snippets" » "doan co code snippets", "doanh co cua snippets", "toan co cua snippets", "doan do cua snippets", "doan con cua snippets", "doan ca cua snippets", "doan cong cua 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: (((("doan co cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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