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

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 public.") or ((("serie policiaca publica.") or ("sobre politicas publicas."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("etica politica public.") OR ((("serie policiaca publica.") OR ("sobre politicas publicas.")))).
• Removing quotes may allow a broader search: (( etica politica public. ) or ((( serie policiaca publica. ) or ( sobre politicas publicas. )))).
• Adding a wildcard symbol may retrieve word variants: (("etica politica public.") or ((("serie policiaca publica.") or ("sobre politicas publicas."))))*.