Perhaps you should try some spelling variations:
passiv » passive, massiv
passiver » passiveer, massiver, passive, passively, passiert
passiven » passiveen, massiven, passive, passion
passivere » passiveere, massivere, passivee, passivelye, passierte, passiverer, passivieren
passiverere » passiveerere, massiverere, passiveere, passivelyere, passiertere, passivererre, passivierenre, passiverer, passiverwerb, passivierende

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