Perhaps you should try some spelling variations:
passiv » passive, passiven, passiver
passivierende » passiveierende, passivenierende, passiverierende, passivieren, aktivierende, passivierung
passivierender » passiveierender, passivenierender, passiverierender, passivierenr, aktivierender, passivierungr, passivieren
passiveer » passiveeer, passiveneer, passivereer, passiverer, passiver, passiviert
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: (((passiv OR (passivierende OR passivierender)) OR massiv) OR passiveer).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((passiv or (passivierende OR passivierender)) or massiv) or passiveer)".
• Adding a wildcard symbol may retrieve word variants: (((passiv or (passivierende OR passivierender)) or massiv) or passiveer)*.