Perhaps you should try some spelling variations:
passiv » passive, passiven, passiver
massiv » massive
massivdecken » massivedecken, massivbrucken
passieren » passiert, passiven
massiger » massive, massie, massinger, massifer, massieer
massig » massing, massif, massie
massinger » massiver, massing

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 massiv) OR (passieren OR (((massiger OR massig) OR massinger) OR massivdecken))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((passiv or massiv) or (passieren or (((massiger OR massig) or massinger) or massivdecken)))".
• Adding a wildcard symbol may retrieve word variants: ((passiv or massiv) or (passieren or (((massiger OR massig) or massinger) or massivdecken)))*.