Perhaps you should try some spelling variations:
"polnischen biographical dictionary" » "polnische biographical dictionary" (Expand Search), "politischen biographical dictionary" (Expand Search), "polnischen biographische dictionary" (Expand Search), "polnischen biographi dictionary" (Expand Search), "polnischen biographien dictionary" (Expand Search)
"polnischener biographie dictionary" » "polnischeer biographie dictionary" (Expand Search), "politischener 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: "((\"polnischen biographical dictionary\") OR (\"polnischener biographie dictionary\"))~".
• Removing quotes may allow a broader search: (( polnischen biographical dictionary ) OR ( polnischener biographie dictionary ))~.
• Adding a wildcard symbol may retrieve word variants: (("polnischen biographical dictionary") OR ("polnischener biographie dictionary"))*.