Perhaps you should try some spelling variations:
sindicato independiente » candidato independiente (Expand Search), candidatos independientes (Expand Search), contrato independiente (Expand Search)
independiente de » independientes en (Expand Search), independencia de (Expand Search), pendiente de (Expand Search)
politica vasca » politica clasica (Expand Search), politica fiscal (Expand Search), politica etica (Expand Search)