Unless you have something like Lojack for Laptops installed BEFORE the loss/theft, there is really nothing you can beyond reporting the incident to the local law enforcement authorities and possibly to your insurance company. Sorry.
Hmmm. SInce it is already stolen only Police can help you. But as a general measure people can use softwares to tack them. Tracking stolen laptop and knowing its whereabouts may give a chance to recover it. You can use some of the free softwares to track laptops as well as phones. You need to install it on your device... Read more about how to do this in the below article.