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

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("serie politicas republica.") or ("etica politica publica."))) or ("serie policiaca public."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie politicas republica.") OR ("etica politica publica."))) OR ("serie policiaca public."))*.
• Removing quotes may allow a broader search: (((( serie politicas republica. ) or ( etica politica publica. ))) or ( serie policiaca public. ))*.