Perhaps you should try some spelling variations:
passiven » passive, passion
passivene » passivee, passione, passiveand, passiverer, passive
passivenere » passiveere, passionere, passiveandre, passivererre, passivere, passiverer, passiverwerb
massiv » massive
passivere » passiverer, passiver, massivere

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 (passivene OR (passivere OR passivenere))).
• Adding a wildcard symbol may retrieve word variants: ((passiven or massiv) or (passivene or (passivere or passivenere)))*.