Perhaps you should try some spelling variations:
passiv » passive, massiv
passivierende » passiveierende, massivierende, passivierender, passivieren, passivierung
passiven » passiveen, massiven, passive, passion
passiver » passiveer, massiver, passive, passively, passiert
aktivierende » aktivierenden, aktivieren, motivierende

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (passiv OR ((passivierende OR (aktivierende OR passiven)) OR passiver))*.