Need help finding Czech records during Soviet occupation.

I am looking to find records related to my grandmother's hometown, Galanta. It was Czech territory from WWI to WWII, then it became Hungarian territory during the war. After the war, the Soviets invaded and returned the territory to the Czechs.

Basically, when the Soviets came in, they took some valuable property from my family and I am curious to see if I am able to trace it or track it down; or how I would even go about doing that. I'm just looking for resources on how to begin pursuit of this research journey. I doubt census records would be helpful, but I'm not even sure which nationality's records I should be searching for. Czech? Soviet? It was Czech territory but the Soviet occupying forces were the ones responsible for the relocation of the family property.

Any advice would be sincerely appreciated.

 

Just to be clear, I should check in with the Slovakian consulate, right? After Czechoslovakia split, I believe the town was placed within the boundaries of Slovkia, and not Czechia.

 

I wouldn't bother, in Eastern Europe stolen things (especially by Soviet soldiers but others too) will remain stolen forever.
And what they took away "officially" will not be returned ever either.
Countries tried that (to recover things) and failed, a private person has no chance whatsoever.