Perhaps you should try some spelling variations:
massiv » massive
massiverer » massiveerer, massivere, massigeren, passiverwerb, massiveer, massivener, passiverer
massiver » massiveer, massive, massiven, passiver
passiverer » passiverwerb, passivieren, passiver
massierer » kassierer, massferrer, massigeren
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 ((massiverer OR (massierer OR kassierers)) OR massiver)))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(massiv or (passiverer or ((massiverer or (massierer OR kassierers)) or massiver)))*".