Perhaps you should try some spelling variations:
passiv » passive, passiver
passiven » passiveen, passiveren, passive, passion
passivieren » passiveieren, passiverieren, passivierende, passivierung, passieren
passiveeeren » passiveeeeren, passivereeeren, passieren, passiverer
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 ((passiven OR massiv) OR (massivere OR (passivieren OR passiveeeren)))).
• Adding a wildcard symbol may retrieve word variants: (passiv or ((passiven or massiv) or (massivere or (passivieren or passiveeeren))))*.