Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passivenere » passiveenere, massivenere, passivenenere, passiverer, passiverwerb
passiver » passiveer, massiver, passivener, passive, passiven, passively
massiven » massive, passiven, massively
massiver » massive, massively, massiv

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 ((passivenere OR massiven) OR (passiver OR massiver))).
• Adding a wildcard symbol may retrieve word variants: (passiv or ((passivenere or massiven) or (passiver or massiver)))*.