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)
"polnischenener biographie dictionary" » "polnischeenener biographie dictionary" (Expand Search), "polnischenenener biographie dictionary" (Expand Search), "polnischerenener 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 (\"polnischenener biographie dictionary\"))~".
• Removing quotes may allow a broader search: (( polnisch biographical dictionary ) OR ( polnischenener biographie dictionary ))~.
• Adding a wildcard symbol may retrieve word variants: (("polnisch biographical dictionary") OR ("polnischenener biographie dictionary"))*.