Perhaps you should try some spelling variations:
"serie politicas public." » "serie politicas publicas.", "serie politicas publicad.", "serie politica publicas.", "serie policiaca public."
"series politicas public." » "series politicas publicas.", "series politicas publicad.", "series politica publicas.", "series political public.", "serie politica public.", "especies politicas public."
"etica politica publica." » "etica politicas publicas.", "publica 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: (((("serie politicas public.") OR ("series politicas public."))) OR ("etica politica publica."))~.
• Removing quotes may allow a broader search: (((( serie politicas public. ) or ( series politicas public. ))) or ( etica politica publica. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("serie politicas public.") or ("series politicas public."))) or ("etica politica publica."))*.