If the r32 uses a disc/drum combo on the rear. There will be a small hole (normally filled with a rubber plug) in the hat of the brake rotor. Thru this, once correctly lined up, you can use a small flat blade screw driver to turn an adjustment wheel. One way will tighten the h/brake shoes and the other will loosen them. Try to see the thread on the adjuster. That will give you an idea of which way it needs to go. Normally turning it to the right will adjust it up but on some cars they reverse the left side adjuster. Anyway just click it up until you cant turn the rotor anymore and then back it off a few clicks so its just barely dragging. After you have done this on both wheels test the handbrake. If its still not within 5-6 clicks at fully on, you will have to then adjust the actual cable. You can do that at the handbrake lever end.
Hope this helps,
Deren