Depends on how much money we talk about, there are endless examples where "big money" was involved and where the authorities together with law enforcements cooperating all over the planet, have found significant amounts. I would not relay on it.All you can do is follow the money but if it has been turned into crypto, gold, diamonds or any other commodity it's gone.
If there is some criminal activity (depending on what crime there is behind it) a operation then I'm thankful to tell you that we have a world where it is more complicated every day to hide behind such setups.