If you do not have tracking software installed on the MacBook, then the only thing you / your daughter can do is file a police report.
You could also contact Apple and provide them with the Macbook's serial number in the event the person who stole it should try to get it serviced in the future.
I recommend spending money on software like LoJack. It's not really that expensive and at least provides some peace of mind since it can improve your chances of locating a stolen laptop.