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

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: (((("etica politica publico.") OR ("chile politica publicas."))) OR ("serie politicas publicas."))~.
• Removing quotes may allow a broader search: (((( etica politica publico. ) or ( chile politica publicas. ))) or ( serie politicas publicas. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("etica politica publico.") or ("chile politica publicas."))) or ("serie politicas publicas."))*.