If you can't find your friends' servers or if you don't see the servers in your region:
- Go in Steam settings
- Then in the "Downloads" tab
- Open the "Download Region" dropdown and choose the desired region ("Turkey, Ankara for Turkish servers, "Vietnam" for Vietnamese servers...)

See an example here [ibb.co]

(This behaviour is caused by Steam servers, not by Agrou)

We are currently working on a new way to search servers to get around this Steam issue