Perhaps you should try some spelling variations:
passiv » passive, massiv, passiver
passivene » passiveene, massivene, passiverene, passiveand, passive, passively, passivee, passione
passiverer » passiveerer, massiverer, passivererer, passiverwerb, passivieren, passiver
passiven » passiveen, massiven, passiveren, passive, passion
massiverer » massivere, massierer, massiver

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