Perhaps you should try some spelling variations:
"bioinformatik modelle" » "bioinformatic modeling", "bioinformatics models", "bioinformatics model", "bioinformatic modelse", "bioinformation modellee", "bioinformation modelse"
"information modell" » "information modelle", "information model", "information models"
"informatik modell" » "informatic models", "information modelle", "information models"
"geoinformatik modelle" » "geoinformatic modelse", "geoinformation modellee", "geoinformation modelse"
"informatic model" » "informatic models", "information model", "informative model"

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