Most dogs love chicken, but it isn't essential to their diets.
I would try searing t lightly in a pan, so it is still raw in the middle, and reducing the time you cook it for over time until they are eating it raw. Raw chicken doesn't have much of a smell, maybe they just don't realise it is food yet. You can also try mixing it with something they do like. For mine I use tripe as a base for things they aren't keen on. Try chopping the chicken up tiny and hiding it in some beef if that is their favourite.
it is funny how they don't like things off the bone, mine will eat sections of rabbit, pigeon, pheasant etc but if I offer them plain meat they turn their noses up.