Is there any way to increase the water level in the toilet bowl?

Is there any way to increase the water level in the toilet bowl?
Several ways to increase the bowl level. Check and make sure the little 1/8" tube is connected to the ball clck and runs over to the white overflow tube. take a coathanger and clean out the rimholes. If thar don't help get back to me with details. Is it OK at first and then the level drops? How far is it down from normal? Is the tank filled uo to 1/2" under the white overflow tube when it's filled. Waiting on you. Regards, Tom