Perhaps you should try some spelling variations:
massiv » massive
massiven » massiveen, massive, passiven, massively
passiverer » passiverwerb, passiver, passieren
passivieren » passivierung, passieren, passagieren
passivierende » passivierungde, passierende, passagierende, passivierender, aktivierende, passivierung
kassierers » kassierer, kassiererin, kassieren

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