Perhaps you should try some spelling variations:
passiv » massiv, passiven, passiver
passive » massive, passivene, passivere
passivere » massivere, passivenere, passiverere, passiver, passivieren
passiverer » massiverer, passivenerer, passivererer, passiverr, passivierenr, passiverwerb, passivieren, passiver

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