Perhaps you should try some spelling variations:
passiv » passiven, passiver
passive » passivene, passivere
massiv » massive
massiveely » massiveeely, massively, passively, amassively
massigen » massiger, massige, massigung

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 massiv) OR (massiveely OR massigen)).
• Adding a wildcard symbol may retrieve word variants: (((passiv or passive) or massiv) or (massiveely or massigen))*.