Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passivieren » passiveieren, massivieren, passivenieren, passivierung, passagieren, passivierender
passivierende » passiveierende, massivierende, passivenierende, passivierungde, passagierende, passivierenderde, passivierender, aktivierende, passivierung
massively » massive
massiveren » massivere, massigeren, massivement
passieren » passiert, passiven

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