Problem with Daewoo Tacuma 2.0 cc

For several 3 occasions they have retired the head and by 1 to the engine of the engine of my Daewoo Tacuma 2.0 cc.
Can another repair be done, would there be a guarantee that the engine is well?
Greetings

I seem many rectified already on the same engine and maybe the thickness of the cylinder head is very weakened, it should be checked what is the problem that it has to be rectified so many times ... if it will not be that you are breaking the bristle together because the screws are loosen up and it is because the threads of the block are "passed" and the screws are loosen up ... (it is just an example) The one who wants to comment what can be. Greetings!!