Perhaps you should try some spelling variations:
passiv » passive, massiv
passiver » passiveer, massiver, passive, passively, passiert
passiven » passiveen, massiven, passive, passion
passivene » passiveene, massivene, passivee, passione, passiveand, passiverer, passive
passiveen » passiveeen, massiveen, passivieren, passiveand, passiverer
massivelyer » massively
aktivierende » aktivierenden, aktivieren, motivierende

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