Perhaps you should try some spelling variations:
"peter unser lutherisches studien uber 190" » "peter unser lutherischem spanien uber 190" (Expand Search), "peter der lutherischen studien uber 190" (Expand Search), "peter unser lutherisches studien zur 190" (Expand Search), "peter unser lutherisches studien die 190" (Expand Search), "peter unser lutherisches studien uber 60" (Expand Search)
"unter den lutherische kirche band 2" » "unter der lutherischen kirche band 2" (Expand Search), "unter den lutherische kirche und 2" (Expand Search), "unter den lutherische sprache band 2" (Expand Search), "unter dem lutherische kirche band 2" (Expand Search), "uber den lutherische kirche band 2" (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: (("peter unser lutherisches studien uber 190") OR ("unter den lutherische kirche band 2"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"peter unser lutherisches studien uber 190\") OR (\"unter den lutherische kirche band 2\"))*".
• Removing quotes may allow a broader search: (( peter unser lutherisches studien uber 190 ) OR ( unter den lutherische kirche band 2 ))*.