Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"thi tran tro snippets" » "thi trang tro snippets", "thi thanh tro snippets", "thi lan tro snippets", "thi tran troi snippets", "thi tran tri snippets", "thi tran trong 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 ("thi tran tro snippets"))) or ("locating bug core snippets"))~.
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