Perhaps you should try some spelling variations:
"donauschwabisches christentum nr. 23" » "donauschwabisches schrifttum nr. 23" (Expand Search), "donauschwabisches christentum der. 23" (Expand Search), "donauschwabisches christentum eine. 23" (Expand Search)
"dopnauschwabisches schrifttum der. 23" » "donauschwabisches schrifttum der. 23" (Expand Search), "dopnauschwabisches schrifttums der. 23" (Expand Search), "dopnauschwabisches schrifttum uber. 23" (Expand Search), "dopnauschwabisches schrifttum heft. 23" (Expand Search)

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("donauschwabisches christentum nr. 23") OR ("dopnauschwabisches schrifttum der. 23"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"donauschwabisches christentum nr. 23\") OR (\"dopnauschwabisches schrifttum der. 23\"))".
• Removing quotes may allow a broader search: (( donauschwabisches christentum nr. 23 ) OR ( dopnauschwabisches schrifttum der. 23 )).
• Adding a wildcard symbol may retrieve word variants: (("donauschwabisches christentum nr. 23") OR ("dopnauschwabisches schrifttum der. 23"))*.