Perhaps you should try some spelling variations:
passiven » passion
passivere » passiver, passivieren, passiviert
passiverely » passiverly, passivierenly, passiviertly, passively
passiverer » passiverr, passivierenr, passiviertr, passivieren, passiver, passieren
massivere » massiver, massive, massively, massiveere
massiv » massive

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