Perhaps you should try some spelling variations:
massiv » massive
massivere » massiveere, massiver, massive, massiven
massively » massiveely, massive
passiviert » passioniert, passivieren, passiert
passively » passive, passivity, passiven

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: (massiv OR (passiviert OR ((massivere OR massively) OR passively)))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(massiv or (passiviert or ((massivere OR massively) or passively)))*".