Perhaps you should try some spelling variations:
"geobioinformatik modelle" » "bioinformatik modelle", "geobioinformation modelle", "geobiobioinformatik modelle", "geobioinformatic model", "geobioinformatic modele", "geobioinformatic modelse"
"information models" » "information model", "information modeling", "information modelling"
"informatik modelle" » "information modelle", "bioinformatik modelle", "informatic model", "informatic modele", "informatic modelse"
"geoinformatik modelle" » "geoinformation modelle", "geobioinformatik modelle", "geoinformatic model", "geoinformatic modele", "geoinformatic modelse"
"informatik modell" » "information modell", "informatic model", "informatic models"

Try widening your search to All Fields.

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 models"))) OR ((("informatik modelle") OR ((("geoinformatik modelle") OR ("geobioinformatik modelle")))))).
• Removing quotes may allow a broader search: (((( informatik modell ) or ( information models ))) or ((( informatik modelle ) or ((( geoinformatik modelle ) or ( geobioinformatik modelle )))))).
• Adding a wildcard symbol may retrieve word variants: (((("informatik modell") or ("information models"))) or ((("informatik modelle") or ((("geoinformatik modelle") or ("geobioinformatik modelle"))))))*.