Perhaps you should try some spelling variations:
"dopnauschwabisches schrifttum heft 9" » "donauschwabisches schrifttum heft 9" (Expand Search), "dopnauschwabisches schrifttum heft 3" (Expand Search), "dopnauschwabisches schrifttum heft 1" (Expand Search), "dopnauschwabisches schrifttum heft 2" (Expand Search)
"donauschwabisches christentum der 1" » "donauschwabisches schrifttum der 1" (Expand Search), "donauschwabisches christentum eine 1" (Expand Search), "donauschwabisches christentum der _" (Expand Search), "donauschwabisches christentum dem 1" (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: "((\"dopnauschwabisches schrifttum heft 9\") OR (\"donauschwabisches christentum der 1\"))~".
• Removing quotes may allow a broader search: (( dopnauschwabisches schrifttum heft 9 ) OR ( donauschwabisches christentum der 1 ))~.
• Adding a wildcard symbol may retrieve word variants: (("dopnauschwabisches schrifttum heft 9") OR ("donauschwabisches christentum der 1"))*.