Perhaps you should try some spelling variations:
passiv » passive, massiv, passiver
passivene » passiveene, massivene, passiverene, passiveand, passive, passively, passivee, passione
passiverer » passiveerer, massiverer, passivererer, passiverwerb, passivieren, passiver
passiven » passiveen, massiven, passiveren, passive, passion
passivener » passiveener, massivener, passiverener, passiveandr, passiver, passivelyr, passiveer, passioner, passiverwerb
passieren » 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: ((passiv OR passivene) OR ((passiverer OR passieren) OR (passiven OR passivener))).
• Adding a wildcard symbol may retrieve word variants: ((passiv or passivene) or ((passiverer or passieren) or (passiven or passivener)))*.