Perhaps you should try some spelling variations:
"bioinformatik modelle" » "geoinformatik modelle", "bioinformatic modeling", "bioinformatics models"
"information modell" » "information modelle", "information model", "information models"
"informatic modelse" » "informatic models", "informatic model", "information modelle"

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: (("information modell") OR ((("informatic modelse") OR ("bioinformatik modelle")))).
• Removing quotes may allow a broader search: (( information modell ) or ((( informatic modelse ) or ( bioinformatik modelle )))).
• Adding a wildcard symbol may retrieve word variants: (("information modell") or ((("informatic modelse") or ("bioinformatik modelle"))))*.