Perhaps you should try some spelling variations:
"sobre politicas public." » "sobre politicas publicas.", "sobre politicas publicad.", "sobre politica publicas.", "serie politicas public."
"elites politica publica." » "elites politicas publicas.", "elites politicas publica.", "elite politica publica.", "elite politico publica."
"sobre politica pablo." » "sobre politica para.", "sobre colica pablo.", "sobre politica al."

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