Perhaps you should try some spelling variations:
massiv » massive
passivieren » passivierung, passieren, passagieren
passivierende » passivierungde, passierende, passagierende, passivierender, aktivierende, passivierung
massieen » massiven, massigen, massigeren
massiger » massinger, massive, massie

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: (massiv OR (passivieren OR ((massieen OR massiger) OR passivierende)))*.