Perhaps you should try some spelling variations:
"sobre politica publica." » "sobre politicas publicas.", "sobre politicas publica."
"serie politica publico." » "serie politico publico.", "serie politica publicas.", "serie politicas publicas.", "serie politicas publico.", "serie policiaca publico.", "elite politica publico."
"elites politicas public." » "limites politicos public.", "las politicas public.", "ideas politicas public.", "elites politicas publicas.", "elites politicas publicad.", "elites politica publicas."

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 publica.") OR ("serie politica publico."))) OR ("elites politicas public."))~.
• Removing quotes may allow a broader search: (((( sobre politica publica. ) or ( serie politica publico. ))) or ( elites politicas public. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("sobre politica publica.") or ("serie politica publico."))) or ("elites politicas public."))*.