Perhaps you should try some spelling variations:
"polnischen biographical dictionary" » "polnische biographical dictionary" (Expand Search), "polnischen biographische dictionary" (Expand Search), "polnischen biographie dictionary" (Expand Search), "polnischen biographi dictionary" (Expand Search)
"politischen biographical dictionary" » "politischen biographische dictionary" (Expand Search), "politischen biographie dictionary" (Expand Search), "politischen biographi dictionary" (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: (("polnischen biographical dictionary") OR ("politischen biographical dictionary"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"polnischen biographical dictionary\") OR (\"politischen biographical dictionary\"))".
• Removing quotes may allow a broader search: (( polnischen biographical dictionary ) OR ( politischen biographical dictionary )).
• Adding a wildcard symbol may retrieve word variants: (("polnischen biographical dictionary") OR ("politischen biographical dictionary"))*.