Perhaps you should try some spelling variations:
"publica politica publicas." » "publica politicas publicas.", "publica politica publicaciones.", "public policy publicas.", "publica politicas publicass."
"etica politica publico." » "etica politico publico.", "etica politicas publicas.", "etica politicas publicad."
"serie politica publica." » "serie politicas publicas.", "serie politicas publica.", "serie policiaca publica.", "sobre 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: (((("etica politica publico.") or ("publica politica publicas."))) or ("serie politica publica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("etica politica publico.") OR ("publica politica publicas."))) OR ("serie politica publica.")).
• Removing quotes may allow a broader search: (((( etica politica publico. ) or ( publica politica publicas. ))) or ( serie politica publica. )).
• Adding a wildcard symbol may retrieve word variants: (((("etica politica publico.") or ("publica politica publicas."))) or ("serie politica publica."))*.