Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
massivere » massive, massively, massiven, massivee, massivene, passivere
massiver » massive, massiven, passiver
massivene » massiven, 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 massivere) OR massiver) OR massivene).
• Adding a wildcard symbol may retrieve word variants: (((passiv or massivere) or massiver) or massivene)*.