Move. Nothing you can do about it. My new apartment when I moved in had Indian tenants previously and it reeked of Indian food for the first week or two when we moved in, but it eventually got covered up by our smells + deep cleaning of walls and cooking area.

Its true that the smell attaches to things but its not as hard to get out as people say. If they are cooking every night the smell will continuously compound which will require a lot of cleaning to get rid of. you can burn a candle near your door/in vents where the smell enters from and that should help, but there is no way you can get rid of it as long as they keep cooking.