Perhaps you should try some spelling variations:
politica republicana » politicas republicanas, politico republicano, practica republicanas
politico mexicano » politica mexicana, politica mexico, politicos mexico
politicas publica » politicas publicas, politicas publicad, politica publica
sobre politicas » sobre politica, serie politicas

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( art ((politico mexicano) or (politica republicana)). ) or ( sobre politicas publica. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( art ((politico mexicano) OR (politica republicana)). ) OR ( sobre politicas publica. )).
• Adding a wildcard symbol may retrieve word variants: (( art ((politico mexicano) or (politica republicana)). ) or ( sobre politicas publica. ))*.