Perhaps you should try some spelling variations:
clinica publicaciones » clasica publicaciones, quimica publicaciones, botanica publicaciones
politicas publicad » politicas publicas, politica publica, politica publicas
politicas publica » politicas publicas, politica publica, politica publicas
serie clinica » serie clasica, serie politica, muerte clinica

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