Perhaps you should try some spelling variations:
passiv » passive, massiv
passivenere » passiveenere, massivenere, passiverer, passiverwerb, passiveere, passionere
passiver » passiveer, massiver, passive, passively, passiert
passiven » passiveen, massiven, passive, passion
massiven » massive, massively, massiv
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 passiven) OR massiver))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(passiv or ((passivenere or massiven) or ((passiver OR passiven) or massiver)))".
• Adding a wildcard symbol may retrieve word variants: (passiv or ((passivenere or massiven) or ((passiver OR passiven) or massiver)))*.