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