Perhaps you should try some spelling variations:
"serie policiaca publica." » "serie politica publicas.", "serie politicas publicas.", "serie politicas publicad."
"sobre politico publico." » "sobre politica publicas.", "sobre politico republicano.", "sobre politicos republica.", "sobre politica publico.", "sobre politicas publico.", "hombre politico publico."
"serie politica publica." » "serie politicas publicas.", "serie politicas publica.", "sobre politica publica.", "elite politica publica."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("sobre politico publico.") or ((("serie politica publica.") OR ("serie policiaca publica."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("sobre politico publico.") OR ((("serie politica publica.") OR ("serie policiaca publica."))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"sobre politico publico.\") or (((\"serie politica publica.\") OR (\"serie policiaca publica.\"))))*".
• Removing quotes may allow a broader search: (( sobre politico publico. ) or ((( serie politica publica. ) OR ( serie policiaca publica. ))))*.