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