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

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 ((( informatik modelle ) OR ( geoinformatic model )))).
• Adding a wildcard symbol may retrieve word variants: (( informatik modell ) or ((( informatik modelle ) or ( geoinformatic model ))))*.