Perhaps you should try some spelling variations:
"elites politicas publica." » "elites politicas publicas.", "elites politicas publicad.", "elites politica publicas.", "limites politicos publica.", "las politicas publica.", "ideas politicas publica."
"sobre politica publica." » "sobre politicas publicas.", "sobre politicas publica."
"sobre politica pablo." » "sobre politicas 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 politica publica.") OR ("elites politicas publica."))) OR ("sobre politica pablo."))~.
• Removing quotes may allow a broader search: (((( sobre politica publica. ) or ( elites politicas publica. ))) or ( sobre politica pablo. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("sobre politica publica.") or ("elites politicas publica."))) or ("sobre politica pablo."))*.