Perhaps you should try some spelling variations:
passiv » passive, passiver
passiverere » passiveerere, passivererere, passiverer, passiverwerb, passivierende
passiven » passiveen, passiveren, passive, passion
passiveren » passiveeren, passivereren, passivieren, passieren, passiverer
massiv » massive

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 passiverere) OR (passiven OR passiveren)) OR massiv).
• Adding a wildcard symbol may retrieve word variants: (((passiv or passiverere) or (passiven or passiveren)) or massiv)*.