Perhaps you should try some spelling variations:
passiv » passive, passiven
passiver » passiveer, passivener, passive, passiven, passively
passivere » passiveere, passivenere, passivee, passivene, passivelye, passiverer, massivere, passivieren
passivene » passiveene, passivenene, passiven, passiveand, passiverer
passivener » passiveener, passivenener, passivenr, passiveandr, passivererr, passiverer, passiven, passiverwerb
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 passiver) OR massiv) OR ((passivere OR passivene) OR passivener)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((passiv OR passiver) or massiv) or ((passivere or passivene) or passivener))".
• Adding a wildcard symbol may retrieve word variants: (((passiv OR passiver) or massiv) or ((passivere or passivene) or passivener))*.