Perhaps you should try some spelling variations:
passiv » passive, passiven, passiver
passivereren » passiveereren, passivenereren, passiverereren, passiverer, passivierenden, passieren
passivieren » passiveieren, passivenieren, passiverieren, passivierung, passieren, passagieren
passivierende » passiveierende, passivenierende, passiverierende, passivierungde, passierende, passagierende, passivierender, aktivierende, passivierung
massiv » massive
massivere » massiveere, massiver, massive, massively

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 (passivereren OR massivere)) OR (massivere OR (passivieren OR passivierende))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((passiv or massiv) or (passivereren or massivere)) or (massivere or (passivieren OR passivierende)))".
• Adding a wildcard symbol may retrieve word variants: (((passiv or massiv) or (passivereren or massivere)) or (massivere or (passivieren OR passivierende)))*.