Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"can thi toan snippets" » "can thi code snippets", "can thi tran snippets", "can thi hoan snippets", "can thi loan snippets", "cau thi toan snippets", "dan thi toan snippets", "van thi toan 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: (((("can thi toan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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