Perhaps you should try some spelling variations:
massiv » massive
passivenener » passivierender
passiverer » passiverwerb, passivieren, passiver, passiverr, massiverer, passivierenr
passivere » passiver, 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 passiverer)) OR passivere).
• Adding a wildcard symbol may retrieve word variants: ((massiv or (passivenener or passiverer)) or passivere)*.