Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passivere » passiveere, massivere, passivenere, passiver, passivieren, passiviert
passiverer » passiveerer, massiverer, passivenerer, passiverr, passivierenr, passiviertr, passiverwerb, passivieren, passiver
massiveere » massiver
massivere » massiver, massive, massively

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