Hi, sorry to hear about your dog going missing, this might sound stupid but when I was working in Sweden as a gamekeeper, we'd often loose at least one dog every shoot day, what we did to get them back was leave a piece of clothing with our scent on it, jacket etc. at or near the last seen location. And 9 times out of 10 even after a couple days we'd find the missing pooch lying on top of the jacket. Just a suggestion, hope you find her soon