Perhaps you should try some spelling variations:
"sobre politica publicas." » "sobre politicas publicas.", "sobre politica publicaciones.", "sobre politicas publicass."
"etica politica publico." » "etica politico publico.", "etica politicas publicas.", "etica politicas publicad.", "publica politica publico."
"serie politica publica." » "serie politicas publicas.", "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 publicas.") or ("etica politica publico."))) or ("serie politica publica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sobre politica publicas.") OR ("etica politica publico."))) OR ("serie politica publica.")).
• Removing quotes may allow a broader search: (((( sobre politica publicas. ) or ( etica politica publico. ))) or ( serie politica publica. )).
• Adding a wildcard symbol may retrieve word variants: (((("sobre politica publicas.") or ("etica politica publico."))) or ("serie politica publica."))*.