Yes, the sentence is very understandable. But in colloquial English, we don't usually follow "go" with "to" unless to is being used as a preposition to indicate a specific destination. In this case, it would be more common to say: "Can we go find some Chinese food?" or "Let's go find some Chinese food." "To" in this context is just a shortened version of the phrase "in order to", but in this kind of construction, its not really necessary (especially when speaking informally).