Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passivene » passiveene, massivene, passivenene, passiven, passiveand, passiverer
passiveene » passiveeene, massiveene, passiveneene, passiven, passiveand, passivierende
passivierung » passiveierung, massivierung, passivenierung, aktivierung
passivieren » passiveieren, massivieren, passivenieren, passivierende, passieren, passagieren
massiverer » massivere, massierer, passiverer

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 (((passivene OR passiveene) OR (passivierung OR passivieren)) OR massiverer)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(passiv or (((passivene OR passiveene) or (passivierung or passivieren)) or massiverer))".
• Adding a wildcard symbol may retrieve word variants: (passiv or (((passivene OR passiveene) or (passivierung or passivieren)) or massiverer))*.