How do you say Mandarin in Vietnamese? I think people usually just say tiếng Trung Quốc, but if they want to be more specific, is there a way to do so?
Mandarin is quan thoại in Vietnamese (官話 guānhuà in Mandarin). There is also Tiếng Hán tiêu chuẩn (=Standard Chinese or 標準漢語)
So would I say tiếng quan thoại?