Perhaps you should try some spelling variations:
policiaca publica » politica publica, politica publicas, politicas publicas
politicas publica » politicas publicas, politicas publicad, politica publica
series politicas » serie politicas, series political, especies politicas
politica public » politica publica, politica publicas, politico publico
serie politica » serie politicas, sobre politica, elite politica

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 policiaca publica. ) OR ( series politicas publica. ))) OR ( serie politica public. ))~.
• Adding a wildcard symbol may retrieve word variants: (((( serie policiaca publica. ) or ( series politicas publica. ))) or ( serie politica public. ))*.