Perhaps you should try some spelling variations:
"biographien" » "biographies", "biographical", "biographiesn", "biographyn", "biographicaln"
"biographiesn" » "biographies", "biographen", "biographes", "biographiessn", "biographysn", "biographicalsn"
"biographie" » "biographies", "biography", "biographical"

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: (("biographien" OR "biographiesn") OR "biographie").
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"biographien\" OR \"biographiesn\") or \"biographie\")".
• Removing quotes may allow a broader search: (( biographien OR biographiesn ) or biographie ).
• Adding a wildcard symbol may retrieve word variants: (("biographien" OR "biographiesn") or "biographie")*.