If I am understanding what you are asking, you want to network the computers, but to connect them via your phone? However, not using any WiFi or data access?
Well, there is a problem there, in that you wouldn't be able to connect the computers through the phone if the phone doesn't have some sort of internet access via WiFi or data. If the phone does in fact have data, then it will be very dependent on if your phone can actually be set up as a hotspot to allow both computers to connect to its data (the same way a computer connects to a modem/router, meaning you need WiFi capabilities on both computers). However, not all phones can do this, and not all carriers/service providers allow it as well. You would be using quite a lot of data...