Perhaps you should try some spelling variations:
passiven » passive, passion
massiveren » massigeren, massivement, massiven, massivelyn, massivenn, massiveen, massivenen, passiveren
massivere » massive, massively, massiven, massivee, massivene, passivere
massiver » massive, massiven, passiver
passivieren » passivierende, passivierung, passieren

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