Perhaps you should try some spelling variations:
passiv » passive, passiven, passiver
passivierende » passiveierende, passivenierende, passiverierende, passivierender, passivieren, aktivierende
passiveierende » passiveeierende, passiveneierende, passivereierende, passivierender, passivierenden, passivieren
passivere » passiveere, passivenere, passiverere, passiverer, passiver, massivere
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 (passivierende OR passiveierende)) OR massiv) OR passivere).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((passiv or (passivierende OR passiveierende)) or massiv) or passivere)".
• Adding a wildcard symbol may retrieve word variants: (((passiv or (passivierende OR passiveierende)) or massiv) or passivere)*.