Perhaps you should try some spelling variations:
"dopnauschwabisches schrifttum nr. 23" » "donauschwabisches schrifttum nr. 23" (Expand Search), "dopnauschwabisches schrifttum der. 23" (Expand Search), "dopnauschwabisches schrifttum und. 23" (Expand Search), "dopnauschwabisches schrifttum _. 23" (Expand Search)
"donauschwabisches christentum und. 23" » "donauschwabisches schrifttum und. 23" (Expand Search), "donauschwabisches christentum eine. 23" (Expand Search), "donauschwabisches christen und. 23" (Expand Search), "donauschwabisches christentum 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: (("dopnauschwabisches schrifttum nr. 23") OR ("donauschwabisches christentum und. 23"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"dopnauschwabisches schrifttum nr. 23\") OR (\"donauschwabisches christentum und. 23\"))".
• Removing quotes may allow a broader search: (( dopnauschwabisches schrifttum nr. 23 ) OR ( donauschwabisches christentum und. 23 )).
• Adding a wildcard symbol may retrieve word variants: (("dopnauschwabisches schrifttum nr. 23") OR ("donauschwabisches christentum und. 23"))*.