Perhaps you should try some spelling variations:
massiv » massive
passivenener » passivierender
passiverer » passiverwerb, passivieren, passieren, massiverer, passivierenr, passiviertr, passiveer, passivener, passivelyer
passivere » massivere, passivieren, passiviert, passivee, passivene, passivelye
passiver » passive, passiven, passively

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