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

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

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