Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tran vai cac snippets" » "tran vai code snippets", "trang vai cac snippets", "tran van cac snippets", "tran bai cac snippets", "tran va cac snippets", "tran tai cac snippets", "tran voi cac snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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