Perhaps you should try some spelling variations:
neologismus » neologisms, neologismsus, geologistus
neologism » neologisms, geologist
biologismus » biologists
biologisches » biologische, biologischen, biologischer

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: ((neologismus OR neologism) OR (biologismus OR biologisches)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((neologismus or neologism) or (biologismus OR biologisches))".
• Adding a wildcard symbol may retrieve word variants: ((neologismus or neologism) or (biologismus OR biologisches))*.