Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passivere » passiveere, massivere, passivenere, passiverer, passiver
massiver » massive, passiver, massiv
massiven » massive, passiven, massiv
massively » massive

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 passivere) OR ((massiver OR massiven) OR massively))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(passiv or ((passivere or passivere) or ((massiver OR massiven) or massively)))".
• Adding a wildcard symbol may retrieve word variants: (passiv or ((passivere or passivere) or ((massiver OR massiven) or massively)))*.