Perhaps you should try some spelling variations:
"sobre politica publicas." » "sobre politicas publicas.", "sobre politica publicaciones.", "sobre politicas publicass."
"entre politica publico." » "entre politico publico.", "entre politicas publicas.", "entre politicas publicad."
"chile politica publica." » "chile politicas publicas.", "clase politica publica."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("entre politica publico.") or ("chile politica publica."))) or ("sobre politica publicas."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("entre politica publico.") OR ("chile politica publica."))) OR ("sobre politica publicas."))*.
• Removing quotes may allow a broader search: (((( entre politica publico. ) or ( chile politica publica. ))) or ( sobre politica publicas. ))*.