Perhaps you should try some spelling variations:
"donauschwabisches christentum und. 23" » "dopnauschwabisches schrifttum und. 23" (Expand Search), "donauschwabisches christentum eine. 23" (Expand Search), "donauschwabisches christen und. 23" (Expand Search), "donauschwabisches christentum der. 23" (Expand Search)
"donauschwabisches schrifttum und. 23" » "donauschwabisches schrifttum uber. 23" (Expand Search), "donauschwabisches schrifttum der. 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 und. 23\") OR (\"donauschwabisches christentum und. 23\"))~".
• Removing quotes may allow a broader search: (( donauschwabisches schrifttum und. 23 ) OR ( donauschwabisches christentum und. 23 ))~.
• Adding a wildcard symbol may retrieve word variants: (("donauschwabisches schrifttum und. 23") OR ("donauschwabisches christentum und. 23"))*.