Is is possible to setup a network through internet with my office and home computers ? I want to see all my office PC in/as my network places ?
Yes, you can use Remote Desktop connection feature, if you are on Static IP Address at Office / Home Computer.
"my office" - are you the owner? are you allowed to do RDP or other sort of connections ? Do you have admin privileges in both places? If you don't then you cannot. You can try logmein or other similiar network.