Perhaps you should try some spelling variations:
"polnisch biographical dictionary" » "polnische biographical dictionary" (Expand Search), "polnischen biographical dictionary" (Expand Search), "polnischer biographical dictionary" (Expand Search), "polnisch biographische dictionary" (Expand Search), "polnisch biographi dictionary" (Expand Search), "polnisch biographien dictionary" (Expand Search)
"polnischeer biographie dictionary" » "polnischeeer biographie dictionary" (Expand Search), "polnischeneer biographie dictionary" (Expand Search), "polnischereer biographie dictionary" (Expand Search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"polnisch biographical dictionary\") OR (\"polnischeer biographie dictionary\"))~".
• Removing quotes may allow a broader search: (( polnisch biographical dictionary ) OR ( polnischeer biographie dictionary ))~.
• Adding a wildcard symbol may retrieve word variants: (("polnisch biographical dictionary") OR ("polnischeer biographie dictionary"))*.