Perhaps you should try some spelling variations:
mittelalterlichen geistesgeschichte » mittelalterliche geschichte
geistesgeschichte series » zeitgeschichte series, kirchengeschichte series, kulturgeschichte series
zur mittelalterlichen » der mittelalterlichen, ihre mittelalterlichen, im mittelalterlichen

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

• Performing a fuzzy search may retrieve terms with similar spellings: das heilige (reich or reach). (texte OR texts) zur mittelalterlichen geistesgeschichte series~.
• If you are trying to use Boolean operators, they must be ALL CAPS: das heilige (reich OR reach). (texte OR texts) zur mittelalterlichen geistesgeschichte series*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "das heilige (reich or reach). (texte OR texts) zur mittelalterlichen geistesgeschichte series*".