Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passivene » passiveene, massivene, passivenene, passiven, passiveand, passiverer
passivierung » passiveierung, massivierung, passivenierung, aktivierung
passivieren » passiveieren, massivieren, passivenieren, passieren, passagieren, passivierender
passivierende » passiveierende, massivierende, passivenierende, passierende, passagierende, passivierenderde, passivierender, aktivierende, passerende
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 (passivierung OR (passivieren OR passivierende))) OR massiverer)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(passiv or ((passivene or (passivierung or (passivieren OR passivierende))) or massiverer))".
• Adding a wildcard symbol may retrieve word variants: (passiv or ((passivene or (passivierung or (passivieren OR passivierende))) or massiverer))*.