Perhaps you should try some spelling variations:
deutschen geschichte » deutschen reiche
geschichte each » geschichte nach, geschichte ich, geschichte machen
quellen zum » quellen zur
quellen fur » quellen zur, quellen der
each 1945 » nach 1945, peace 1945, eec 1945
biographische » biographical

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

• Performing a fuzzy search may retrieve terms with similar spellings: biographische ((quellen zum) OR (quellen fur)) deutschen geschichte each 1945 ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "biographische ((quellen zum) OR (quellen fur)) deutschen geschichte each 1945 ;".
• Adding a wildcard symbol may retrieve word variants: biographische ((quellen zum) OR (quellen fur)) deutschen geschichte each 1945 ;*.