Perhaps you should try some spelling variations:
"sobre politica publico." » "sobre politico publico.", "sobre politica publicas.", "sobre politicas publicad.", "sobre politicas publico."
"etico politicas publicas." » "etico politicos publicas.", "etico politica publicas.", "mexico politicas publicas.", "etico politicas public."
"serie politica publica." » "serie politicas publica.", "serie policiaca 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 politica publico.") or ((("serie politica publica.") or ("etico politicas publicas."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("sobre politica publico.") OR ((("serie politica publica.") OR ("etico politicas publicas."))))*.
• Removing quotes may allow a broader search: (( sobre politica publico. ) or ((( serie politica publica. ) or ( etico politicas publicas. ))))*.