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