Perhaps you should try some spelling variations:
"geschichte 1783-1790" » "geschichte 1700-1790" (Expand Search), "geschichte 1880-1790" (Expand Search), "geschichte 1745-1790" (Expand Search)
"geschichte 1723-1790" » "geschichte 1821-1790" (Expand Search), "geschichte 1700-1790" (Expand Search), "geschichte 1927-1790" (Expand Search)
"geschichte 1784-1790" » "geschichte 1840-1790" (Expand Search), "geschichte 1700-1790" (Expand Search), "geschichte 1854-1790" (Expand Search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("geschichte 1783-1790") OR ("geschichte 1723-1790"))) or ("geschichte 1784-1790"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("geschichte 1783-1790") OR ("geschichte 1723-1790"))) OR ("geschichte 1784-1790"))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"geschichte 1783-1790\") OR (\"geschichte 1723-1790\"))) or (\"geschichte 1784-1790\"))*".
• Removing quotes may allow a broader search: (((( geschichte 1783-1790 ) OR ( geschichte 1723-1790 ))) or ( geschichte 1784-1790 ))*.