Perhaps you should try some spelling variations:
ediciones del » ediciones de, edicion del, condiciones del
medicion de » medicina de
campo raul » campos raul, campa raul, campo arauz
campo en » campo y
de campo » de cambio, el campo
raul roa » raul a, raul o
roa pau » roa raul, roig pau

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( ediciones del ((campo en) OR (campo de)) la paz ; ) or ( medicion de campo raul roa pau ; ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ediciones del ((campo en) OR (campo de)) la paz ; ) OR ( medicion de campo raul roa pau ; ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ediciones del ((campo en) OR (campo de)) la paz ; ) or ( medicion de campo raul roa pau ; ))*".