Perhaps you should try some spelling variations:
information modell » information modelle, information model, information models
informatik modelle » information modelle, geoinformatik modelle, bioinformatik modelle
informatik modell » informatic model, informatic models, information modelle

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: (((( informatik modell ) OR ( information modell ))) OR ( informatik modelle )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( informatik modell ) OR ( information modell ))) or ( informatik modelle ))".
• Adding a wildcard symbol may retrieve word variants: (((( informatik modell ) OR ( information modell ))) or ( informatik modelle ))*.