Perhaps you should try some spelling variations:
"donauschwabisches christentum heft 1" » "donauschwabisches schrifttum heft 1" (Expand Search), "dopnauschwabisches schrifttum heft 1" (Expand Search), "donauschwabisches christentum der 1" (Expand Search), "donauschwabisches christentum eine 1" (Expand Search), "donauschwabisches christentum heft 3" (Expand Search)
"donauschwabischen geschichte heft 10" » "donauschwabischen geschichte der 10" (Expand Search), "donauschwabischen geschichte des 10" (Expand Search), "donauschwabischen geschichte auf 10" (Expand Search), "donauschwabischen geschichte heft 12" (Expand Search), "donauschwabischen geschichte heft 19" (Expand Search), "donauschwabischen geschichte heft 30" (Expand Search), "donauschwabische geschichte heft 10" (Expand Search), "donauschwaben geschichte heft 10" (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("donauschwabischen geschichte heft 10") OR ("donauschwabisches christentum heft 1"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"donauschwabischen geschichte heft 10\") OR (\"donauschwabisches christentum heft 1\"))".
• Removing quotes may allow a broader search: (( donauschwabischen geschichte heft 10 ) OR ( donauschwabisches christentum heft 1 )).
• Adding a wildcard symbol may retrieve word variants: (("donauschwabischen geschichte heft 10") OR ("donauschwabisches christentum heft 1"))*.