Perhaps you should try some spelling variations:
"sobre politica publicas." » "sobre politicas publicas.", "sobre politica publica.", "sobre politica publicaciones."
"serie politicas publica." » "serie politicas publicas.", "serie politicas publicad.", "serie politica publica.", "serie policiaca publica."
"elite politica publico." » "elite politica publica.", "elite politico publico.", "elite politicas publicas.", "elites politicas publico.", "etica politica publico.", "entre politica publico."

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sobre politica publicas.") OR ("elite politica publico."))) OR ("serie politicas publica."))~.
• Removing quotes may allow a broader search: (((( sobre politica publicas. ) or ( elite politica publico. ))) or ( serie politicas publica. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("sobre politica publicas.") or ("elite politica publico."))) or ("serie politicas publica."))*.