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