Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"data qua cai snippets" » "data qua code snippets", "danh qua cai snippets", "dat cua cai snippets", "dat hua cai snippets", "data qua hai snippets", "data qua cac snippets", "data qua ca 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: (((("data qua cai snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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