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

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 policiacas public. ) OR ((( serie politica publica. ) OR ( sobre politica publica. ))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( serie policiacas public. ) or ((( serie politica publica. ) OR ( sobre politica publica. ))))~".
• Adding a wildcard symbol may retrieve word variants: (( serie policiacas public. ) or ((( serie politica publica. ) OR ( sobre politica publica. ))))*.