Perhaps you should try some spelling variations:
passiv » passive, passiver
passiven » passiveen, passiveren, passive, passion
passivierende » passiveierende, passiverierende, passivierender, passivieren, aktivierende
passivierenr » passiveierenr, passiverierenr, passivieren, passivierender, passivierung
massiv » 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 massiv) OR (passiven OR passivierende)) OR passivierenr).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((passiv OR massiv) or (passiven or passivierende)) or passivierenr)".
• Adding a wildcard symbol may retrieve word variants: (((passiv OR massiv) or (passiven or passivierende)) or passivierenr)*.