Perhaps you should try some spelling variations:
"sobre politica publicaas." » "sobre politica publicas.", "sobre politicas publicas.", "sobre politicas publicad.", "sobre politicas publicasas.", "sobre politicas publicaas."
"chile politica publica." » "chile politicas publicas.", "clase politica publica."
"etica politica publica." » "etica politicas publicas.", "publica politica publica."

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: (((("chile politica publica.") OR ("etica politica publica."))) OR ("sobre politica publicaas."))~.
• Removing quotes may allow a broader search: (((( chile politica publica. ) or ( etica politica publica. ))) or ( sobre politica publicaas. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("chile politica publica.") or ("etica politica publica."))) or ("sobre politica publicaas."))*.