Get some of those sticky mouse traps and it will catch some of the roaches. They'll get stuck on them and can't get off.
Also try some roach motels.
If all that fails I'd recommend just hiring an exterminator to rid your home completely of cock roaches.
They have some strong powerful chemicals and they can create a barrier around your house with the chemicals to keep the roaches out.
Seal any cracks that they may be getting into your house through too.