Perhaps you should try some spelling variations:
"vater unser lutherisches spanien band 1" » "vater unser lutherischem spanien band 1" (Expand Search), "vater unser lutherischen kolonien band 1" (Expand Search), "vater der lutherischen spanien band 1" (Expand Search), "vater unser lutherisches spanien und 1" (Expand Search), "vater unser lutherisches studien band 1" (Expand Search), "vater unser lutherisches spanien band i" (Expand Search)
"vater unser lutherischen kirche band 2" » "vater unser lutherische kirche band 2" (Expand Search), "vater der lutherischen kirche band 2" (Expand Search), "vater evangel lutherischen kirche band 2" (Expand Search), "vater unser lutherischen kirche und 2" (Expand Search), "vater unser lutherischen sprache band 2" (Expand Search)

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• Performing a fuzzy search may retrieve terms with similar spellings: (("vater unser lutherisches spanien band 1") OR ("vater unser lutherischen kirche band 2"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"vater unser lutherisches spanien band 1\") OR (\"vater unser lutherischen kirche band 2\"))".
• Removing quotes may allow a broader search: (( vater unser lutherisches spanien band 1 ) OR ( vater unser lutherischen kirche band 2 )).
• Adding a wildcard symbol may retrieve word variants: (("vater unser lutherisches spanien band 1") OR ("vater unser lutherischen kirche band 2"))*.