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