Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cuong di hoi snippets" » "cuong di code snippets", "duong di hoi snippets", "cuong do hoi snippets", "huong di hoi snippets", "cuong dai hoi snippets", "cuong doi hoi snippets", "cuong bi hoi 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: (((("python using java snippets") or ("cuong di hoi snippets"))) or ("locating bug core snippets"))~.
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