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