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

Try widening your search to All Fields.

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 ("etica politica publicas."))) or ("serie politica publica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("etica politica publico.") OR ("etica politica publicas."))) OR ("serie politica publica.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"etica politica publico.\") OR (\"etica politica publicas.\"))) or (\"serie politica publica.\"))".
• Removing quotes may allow a broader search: (((( etica politica publico. ) OR ( etica politica publicas. ))) or ( serie politica publica. )).
• Adding a wildcard symbol may retrieve word variants: (((("etica politica publico.") OR ("etica politica publicas."))) or ("serie politica publica."))*.