Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"tan tran tro snippets" » "tan tran troi snippets", "tan tran tri snippets", "tan tran trong snippets", "toan tran tro snippets", "than tran tro snippets", "tuan tran tro snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("tan tran tro snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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