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

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

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