Qual é a diferença entre mua thức ăn e mua món ăn and mua do an ?Podes indicar apenas respostas exemplo.

Yeah, they are mutually intelligible. But it's not gonna easy. "thức", "món" and "mua" are classifiers. In Vietnamese, like many other Asian languages, nouns require classifier words to be counted. "thức" has some meanings: mood, to stay up, to stay awake,... But in this context, you cannot divide it into two parts "thức" and "ăn", "thức ăn" is a compound noun. "Thức ăn" means "food" (in general) and means "the food" (in specific). It also marks food or even clothing (e.g. thức ăn, thức mặc). The general definition is any raw or cooked plants or meat. "đồ ăn" can be used interchangeably with "thức ăn". "món" is a classifier but it also means "dish(es)", you can say "món cá" (fish dishes), "món thịt" (meat dishes),.. but you can't say "thức cá", "đồ cá", "thức thịt", "đồ thịt",...