Yes. Yahoo can. We can't. It's like to recipe for Coke – it's a trade secret.
As cobwebseo says, the basics for getting indexed and ranked on Yahoo are pretty much the same as they are for Google. The big difference is that Google gets lots and lots of visitors, whereas Yahoo doesn't get very many. So unless you are specifically aiming at a demographic that you know uses Yahoo a lot more than the average, it isn't generally worth worrying about specific strategies for Yahoo.