Perhaps you should try some spelling variations:
donauschwabisches christentum » donauschwabisches schrifttum (Expand Search), dopnauschwabisches schrifttum (Expand Search)
donauschwabischen schrifttum » donauschwabisches schrifttum (Expand Search), dopnauschwabisches schrifttum (Expand Search), donauschwabischen geschichte (Expand Search)
christentum heft » christentum der (Expand Search), christentum eine (Expand Search)
heft 10 » heft 12 (Expand Search), heft 19 (Expand Search)
heft 1 » heft 3 (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 schrifttum heft 10 ) OR ( donauschwabisches christentum heft 1 ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( donauschwabischen schrifttum heft 10 ) OR ( donauschwabisches christentum heft 1 ))".
• Adding a wildcard symbol may retrieve word variants: (( donauschwabischen schrifttum heft 10 ) OR ( donauschwabisches christentum heft 1 ))*.