Getting her to come when you call is a start. Reinforce the idea that coming to you when on a scent every time you call. Hounds love to wander and can get lost if their selective hearing takes over.
She's a rabbit dog. Either catch a local wild rabbit (best) or buy a bunny. Put it in a roller so the dog can get used to chasing it. You can also keep a stuffed animal in the rabbit cage so it smells like a rabbit and then tie it to a rope and have the dog chase after. Just reinforce the idea that chasing rabbit is good.