Perhaps you should try some spelling variations:
massiv » massive
massivere » massiveere, massiver, massive, massively
passivenener » passivierender
passiverer » passiverwerb, passivieren, passiver, passiverr, passivierenr, passiviertr
passivere » passiver, passivieren, passiviert

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