Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passivierung » passiveierung, massivierung, passivenierung, aktivierung
passivieren » passiveieren, massivieren, passivenieren, passivierende, passieren, passagieren
massivieren » massigeren, passivierende, massivdecken
massivere » massiver, massive, massively
massiveren » massivern, massiven, massivelyn, massigeren, massivement

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