Perhaps you should try some spelling variations:
passivere » passiverer, passiver, massivere
massiver » massive, massiven, passiver, massiveer
passivierenly » passivieren, passivierenden, passivierung
passivierender » aktivierender, passivieren, passivierenr, passivierungr
passivierende » passivieren, aktivierende, passivierung
massiv » massive

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: ((passion OR ((passive OR (passivere OR massiver)) OR (passivierenly OR (passivierender OR passivierende)))) OR massiv).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((passion or ((passive or (passivere or massiver)) or (passivierenly or (passivierender OR passivierende)))) or massiv)".
• Adding a wildcard symbol may retrieve word variants: ((passion or ((passive or (passivere or massiver)) or (passivierenly or (passivierender OR passivierende)))) or massiv)*.