Perhaps you should try some spelling variations:
"etica politica publicas." » "etica politicas publicas.", "etica politica publicaciones.", "etica politicas publicass."
"publica politica publicas." » "publica politicas publicas.", "publica politica publicaciones.", "public policy publicas.", "publica politicas publicass."
"sobre politica publica." » "sobre politicas publicas.", "sobre politicas 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 publicas.") OR ("publica politica publicas."))) or ("sobre politica publica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("etica politica publicas.") OR ("publica politica publicas."))) OR ("sobre politica publica.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"etica politica publicas.\") OR (\"publica politica publicas.\"))) or (\"sobre politica publica.\"))".
• Removing quotes may allow a broader search: (((( etica politica publicas. ) OR ( publica politica publicas. ))) or ( sobre politica publica. )).
• Adding a wildcard symbol may retrieve word variants: (((("etica politica publicas.") OR ("publica politica publicas."))) or ("sobre politica publica."))*.