Perhaps you should try some spelling variations:
passiv » passiven
passiver » passivener, passiven, passively, passiert
passive » passivene
passivieren » passivenieren, passivierende, passivierung, passieren
passivenene » passivenenene, passivierende
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 passive) OR passivieren) OR passivenene)*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((passiv OR passiver) or massiv) or passive) or passivieren) or passivenene)*".