Tried the crates, my husky would just whine and bark until I let them out, also tried separating them in different rooms with a baby gate, still no luck, she would whine and bark about that too.
If you have owned or been around the Husky breed in general, they are like Siamese cats- very, very vocal. Dobies can be vocal too, but not like this breed.
If you are putting them in crates, and letting them out when they start whiing, barking, screaming, chewing the bars, you are only being trained by a puppy to let him out when he says, and not when you say.
Rou went through his horrible stage of hating his crate and screaming like was being murdered. Being as he needed to be crated regardless if I was not home, and still has to be, I slept through this behavior for about a month if not longer until he began to like his crate.
Propping the crate open with a desirable treat
or toy to play with worked really well in conditioning my boy to liking his "den". When he is tired he just walks right in and goes to sleep. He has a nice pillow in there too to sleep on, making it a desirable spot.
Also using a crate as a "time out" place is a big NO NO regardless of breed. You want them to like the crate and not fear it.
Right now you are training your dog that he has to stay in there, but WILL eventually come out and not be locked up forever! Leaving the door propped open is good.
As for stealing treats, toys, bones, etc. If you can't separate them, just don't give them something that can be stolen. Or you can give them puzzle toys that they need to work at- i.e. freezing a Kong toy with treats/food inside to keep each dog occupy on something other than each others bones?
A lot of helpful information has already been posted.