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