I don't find any item of the Wolf set at the known places. I'm level 27. If I check the chests, there are no set Items in it. It's the same, if I look for the notes of hieronymus. I don't find it too. I know who sells it, but they didn't have. Who can tell me, what the problem is and how I can manage it. Thanks

If you're following the quest properly, and there's nothing in the chests, then your game is corrupt or a mod is interfering. Take appropriate steps, ie. remove all mods and verify/repair your installation.

Is it possible that your free DLCs are not activated?

In the meantime I have found the wolf set. I had to order the free DLC. Everthing Okay.
But now there is a new problem. It looks like a bug. I have all plans of the whole wolf set. At the moment I'm staying with the blacksmith. He should build the superior wolf set. He does it, but suddenly the wolf armor plan is missing. If I leave the blacksmith and the wolf armor plan is in the inventory. I tried it with all blacksmithes. If I'm staying alone, I have the plan. Asking the blacksmith, the wolf armor plan is missing. All the other items are produced by the blacksmith. Is thereanyone, who has an idea?

Blacksmith/Armourer must be at least journeyman level to craft superior weapons/armor.

Don't necro old threads, especially threads that have absolutely nothing to do with your current problem. Make a new thread explaining exactly what the problem is.