Perhaps you should try some spelling variations:
"geoinformation modelle" » "geoinformation models", "information modelle", "die informationsmodelle"
"geoinformatik modelle" » "geoinformation modelse", "bioinformatik modellee", "informatik modelle", "geoinformatik modell", "geoinformation modelle", "geobioinformatik modelle"
"geoinformatik modell" » "geoinformation models", "bioinformatik modelle", "informatik modell"
"informatik modelle" » "informatik modell", "information modelle", "bioinformatik modelle"
"informatic models" » "informatic model", "information models", "informative 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: (("informatic models") OR ((("informatik modelle") OR ((((("geoinformatik modelle") OR ("geoinformatik modell"))) OR ("geoinformation modelle")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"informatic models\") or (((\"informatik modelle\") or (((((\"geoinformatik modelle\") OR (\"geoinformatik modell\"))) or (\"geoinformation modelle\"))))))".
• Removing quotes may allow a broader search: (( informatic models ) or ((( informatik modelle ) or ((((( geoinformatik modelle ) OR ( geoinformatik modell ))) or ( geoinformation modelle )))))).
• Adding a wildcard symbol may retrieve word variants: (("informatic models") or ((("informatik modelle") or ((((("geoinformatik modelle") OR ("geoinformatik modell"))) or ("geoinformation modelle"))))))*.