Perhaps you should try some spelling variations:
"donauschwabisches christentum der. 23" » "donauschwabisches schrifttum der. 23" (Expand Search), "dopnauschwabisches schrifttum der. 23" (Expand Search), "donauschwabisches christentum eine. 23" (Expand Search)
"donauschwabische schrifttums der. 23" » "donauschwabisches schrifttum der. 23" (Expand Search), "dopnauschwabisches schrifttum der. 23" (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: (("donauschwabische schrifttums der. 23") OR ("donauschwabisches christentum der. 23"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"donauschwabische schrifttums der. 23\") OR (\"donauschwabisches christentum der. 23\"))*".
• Removing quotes may allow a broader search: (( donauschwabische schrifttums der. 23 ) OR ( donauschwabisches christentum der. 23 ))*.