Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passivieren » passiveieren, massivieren, passivenieren, passivierende, passivierung, passagieren
passiveeeer » passiveeeeer, massiveeeer, passiveneeeer, passiverer, passiverwerb
massiveen » massiven, massivement, massivsten
passieren » passiert, passiven

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 (massiveen OR passivieren)) OR (passiveeeer OR passieren))*.