Perhaps you should try some spelling variations:
"donauschwabische schrifttum heft 10" » "donauschwabisches schrifttum heft 10" (Expand Search), "dopnauschwabisches schrifttum heft 10" (Expand Search), "donauschwabisches christentum heft 10" (Expand Search), "donauschwabische schrifttum heft 1" (Expand Search), "donauschwabische schrifttum heft 19" (Expand Search)
"donauschwabische schrifttum heft 12" » "donauschwabisches schrifttum heft 12" (Expand Search), "dopnauschwabisches schrifttum heft 12" (Expand Search), "donauschwabisches christentum heft 12" (Expand Search), "donauschwabische schrifttum heft 1" (Expand Search), "donauschwabische schrifttum heft 2" (Expand Search), "donauschwabische schrifttum heft 19" (Expand Search)

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