Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passivere » passiveere, massivere, passivenere, passiverer, passivieren, passivee, passivene, passierte
passiver » passiveer, massiver, passivener, passive, passiven, passiert
passively » passiveely, massively, passivenely, passive, passivity
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 ((passivere OR massiven) OR ((passiver OR passively) OR massiver))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(passiv or ((passivere or massiven) or ((passiver OR passively) or massiver)))".
• Adding a wildcard symbol may retrieve word variants: (passiv or ((passivere or massiven) or ((passiver OR passively) or massiver)))*.