Route specific traffic out of VPN

Without VPN

$ route
default            192.168.50.123  0.0.0.0         UG    0      0        0 wlan0
192.168.50.0         *               255.255.255.0   U     2      0        0 wlan0

$ nmcli con up id "My VPN"

After VPN
# route
VPN
default                       *               0.0.0.0                    U     0      0        0 ppp0
myvpn           192.168.50.123  255.255.255.255   UGH   0      0        0 wlan0
myvpn           192.168.50.123  255.255.255.255   UGH   0      0        0 wlan0
192.168.0.1                *              255.255.255.255   UH    0      0        0 ppp0
192.168.50.0              *              255.255.255.0         U     2      0        0 wlan0

After connecting to VPN all traffic goes through VPN, but I need to connect to a server in my office out of the vpn
So I create a route to the server to use wlan0 ( not ppp0 ) when the destination address is the address of my server

$ sudo route add -net 192.168.33.12 netmask 255.255.255.255 gw 192.168.50.123 dev wlan0
or
$ sudo route add -host 192.168.33.12 gw 192.168.50.123 dev wlan0



$ route
default             *               0.0.0.0                                  U     0      0        0 ppp0
myvpn   192.168.50.123  255.255.255.255               UGH   0      0        0 wlan0
myvpn   192.168.50.123  255.255.255.255               UGH   0      0        0 wlan0
192.168.0.1     *               255.255.255.255                 UH    0      0        0 ppp0
192.168.33.12   192.168.50.123  255.255.255.255   UGH   0      0        0 wlan0
192.168.50.0    *               255.255.255.0                      U     2      0        0 wlan0

and to remove

$ sudo route del -net 192.168.33.58 netmask 255.255.255.255