Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luc khai cac snippets" » "luc khai code snippets", "luc khac cac snippets", "luc khoi cac snippets", "cuc hai cac snippets", "luc khai thac snippets", "luc thoai cac snippets", "luc tai cac 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: (((("luc khai cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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