Perhaps you should try some spelling variations:
massiv » massive
massivere » massiveere, massiver, massive, massively
passiverer » passivieren, passieren, passagerer, passiveer, passivener, passivelyer
passiverwerb » passivewerb, passivenwerb, passivelywerb
passiver » passive, passiven, passively

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 ((passiverer OR passiverwerb) OR (massivere OR passiver)))*.