"There is more food."
Translation:Det finns mer mat.
I'm a newbie so beware etc., but det finns is the Swedish way of saying that something exists, that something is. It applies (I'm assuming!) to both physical objects and more abstract things, as in "there's nothing to say" (a thing to say? There isn't one)
Lots of languages have special verbs for this function, but in English we just stick there + be - so there is, there are, there were, there had been and so on. You can think of it as a special use of there that's nothing to do with position, which leads to phrases like there's a cat there where you need to add another word if you want to describe location.
So at a guess, där only corresponds to the positional sense of there, and doesn't have any association with this weird alternative meaning that English uses. You just need to get used to this sense of 'a thing exists' and immediately reach for det finns in Swedish (or hay in Spanish if that helps)