Perhaps you should try some spelling variations:
passiven » passive, passion
passiveneeeer » passiveeeeer, passioneeeer
massiv » massive
passiveen » passivieren, passiveand, passive
passiveeeer » passiverwerb
passiverer » passiverwerb, passivieren, passiver

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: (((passiven OR massiv) OR passiveen) OR ((passiveeeer OR passiveneeeer) OR passiverer)).
• Adding a wildcard symbol may retrieve word variants: (((passiven or massiv) or passiveen) or ((passiveeeer or passiveneeeer) or passiverer))*.