is there any chance to find it out ?!
Yes, you can find out the IP, and if the hacker used a VPN, that can be bypassed and you get the real location, you need someone with good computer skills. But that's about all you can get.
You can file a report, prove that the BTC was indeed transferred out of a wallet you own and then you can monitor the hacker's address, if he/she slips up and uses an exchange directly then their full details can be retrieved. But there are so many ways to circumvent this: mixer services is one. So there is only a slim chance your assets can be returned to you.
