Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passivene » passiveene, massivene, passivenene, passiven, passiveand, passiverer
massivene » massiven, massive, passiven
massively » massive
massivere » massiver, massive, massiven

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