Perhaps you should try some spelling variations:
passiv » passive, massiv, passiver
passivieren » passiveieren, massivieren, passiverieren, passivierende, passivierung, passieren
passiven » passiveen, massiven, passiveren, passive, passion
massivenene » massivement

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 ((massivenene OR (passivieren OR passiven)) OR passiert))*.