Perhaps you should try some spelling variations:
"donauschwabisches christentum heft 9" » "donauschwabisches schrifttum heft 9" (Expand Search), "dopnauschwabisches schrifttum heft 9" (Expand Search), "donauschwabisches christentum der 9" (Expand Search), "donauschwabisches christentum eine 9" (Expand Search), "donauschwabisches christentum heft 3" (Expand Search), "donauschwabisches christentum heft 1" (Expand Search), "donauschwabisches christentum heft 4" (Expand Search)
"donauschwabischen schrifttum heft 2" » "donauschwabisches schrifttum heft 2" (Expand Search), "dopnauschwabisches schrifttum heft 2" (Expand Search), "donauschwabischen geschichte heft 2" (Expand Search), "donauschwabischen schrifttum heft 3" (Expand Search), "donauschwabischen schrifttum heft 1" (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: (("donauschwabisches christentum heft 9") OR ("donauschwabischen schrifttum heft 2"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"donauschwabisches christentum heft 9\") OR (\"donauschwabischen schrifttum heft 2\"))".
• Removing quotes may allow a broader search: (( donauschwabisches christentum heft 9 ) OR ( donauschwabischen schrifttum heft 2 )).
• Adding a wildcard symbol may retrieve word variants: (("donauschwabisches christentum heft 9") OR ("donauschwabischen schrifttum heft 2"))*.