Perhaps you should try some spelling variations:
passiv » massiv, passiver
passiven » massiven, passiveren, passion
passiveen » massiveen, passivereen, passivieren, passiverer, passively
passive » massive, passivere
passiveand » massiveand, passivereand
passivierende » massivierende, passiverierende, passivierender, passivieren, aktivierende

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