Perhaps you should try some spelling variations:
"donauschwabischen geschichte heft 1" » "donauschwabischen geschichte der 1" (Expand Search), "donauschwabischen geschichte des 1" (Expand Search), "donauschwabischen geschichte auf 1" (Expand Search), "donauschwabischen geschichte heft 3" (Expand Search), "donauschwabische geschichte heft 1" (Expand Search), "donauschwaben geschichte heft 1" (Expand Search)
"donauschwabisches schrifttum im 19" » "donauschwabisches schrifttum _ 19" (Expand Search), "donauschwabisches schrifttum nr 19" (Expand Search), "donauschwabisches schrifttum der 19" (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 geschichte heft 1") OR ("donauschwabisches schrifttum im 19"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"donauschwabischen geschichte heft 1\") OR (\"donauschwabisches schrifttum im 19\"))".
• Removing quotes may allow a broader search: (( donauschwabischen geschichte heft 1 ) OR ( donauschwabisches schrifttum im 19 )).
• Adding a wildcard symbol may retrieve word variants: (("donauschwabischen geschichte heft 1") OR ("donauschwabisches schrifttum im 19"))*.