Perhaps you should try some spelling variations:
"serie policiaca publicaa." » "serie politica publica.", "serie politica publicas.", "serie politicas publicas."
"sobre politica publicaa." » "sobre politica publica.", "sobre politica publicas.", "sobre politicas publicas.", "sobre politica publicaaa.", "sobre politica publicasaa.", "sobre politico publicoaa.", "sobre politicas publicaa."
"elite politica public." » "elite politica publica.", "elite politica publicas.", "elite politico publico.", "elites politicas public.", "etica politica public.", "entre politica public."

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: (((("sobre politica publicaa.") OR ("serie policiaca publicaa."))) OR ("elite politica public."))~.
• Removing quotes may allow a broader search: (((( sobre politica publicaa. ) or ( serie policiaca publicaa. ))) or ( elite politica public. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("sobre politica publicaa.") or ("serie policiaca publicaa."))) or ("elite politica public."))*.