Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passivierender » passiveierender, massivierender, passivenierender, aktivierender, passivierungr, passerender, passivierungder, passierender, passagierender
passivierende » passiveierende, massivierende, passivenierende, aktivierende, passivierung, passerende, passivierungde, passierende, passagierende
passivieren » passiveieren, massivieren, passivenieren, passivierung, passieren, passagieren

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