Perhaps you should try some spelling variations:
massiv » massive
passivenener » passivierender, passiverer
passiver » passive, passiven, passively
passivere » passivee, passivene, passivelye, passiverer, massivere, passivieren

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 (passivenener OR passiver)) OR passivere).
• Adding a wildcard symbol may retrieve word variants: ((massiv or (passivenener or passiver)) or passivere)*.