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