Perhaps you should try some spelling variations:
"serie politicas republica." » "serie politicos republica.", "serie politicas republicanas.", "serie politica republicana.", "serie policiaca republica."
"etica politica publica." » "etica politicas publicas.", "publica politica publica."
"entre politica publica." » "entre politicas publicas.", "sobre politica publica."

You may be able to get more results by adjusting your search query.

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