Do not find rims with tyres (used to buy)

Moin Forum, Hello my name is Christian and I have a problem with my car me is a tire burst. Now I wanted to mount of course one or two tires, the bursted tire is front right. Now I have bought me by now 3 complete sets of tires…. I have to say, I bought them used and it should also be used because I actually did not have to put a lot of money in the car, it has still 1 year Tüv and that I wanted to drive even to the end None of the tire sets worked, I could mount them all but as soon as I started they squealed….I did not drive any further with it. I then re-assembled the old 3 tires + the spare tire…and the whole thing now already 3 times… With all my cars it has always worked but this makes me mad I have an Opel Astra F Caravan (first registration 1994) In my registration certificate stands for the tires (155 R13 78S) no more… (devalued) registration certificate stand clearly more tires that I can drive…why were not all taken over by the Ordnungsamt in the new registration certificate with ? But on my car are not these tires, I only noticed when the tire broke me that I have other tires on it. On top are: 165/65 R14 So they also seem to fit… Why the used bought did not fit I did not know until a colleague told me that the rims all different inputs now my car is almost on the spot for 2 months… I just want to buy used tires that are on steel rims so I can just change the tires. Now my question to you can you please tell me which tire size would fit with this car model and what I have to pay attention to now with the rims if I am looking for used tires again. That would be very nice because I really have the muzzle full , it just stresses me If you still need any data from the admission certificate etc. then please write it to me, I will then submit the data to you here, since I have no idea what data you need I have not listed any more here. I thank you already in advance, greeting Christian