Perhaps you should try some spelling variations:
massiv » massive
passivierende » passivierender, aktivierende, passivierung, passivierungde, passierende, passagierende
passivieren » passivierung, passieren, passagieren
passiven » passive, passion
passiver » passive, passively, passiert

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: (massiv OR ((passivierende OR (passivieren OR passiven)) OR passiver))*.