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
del campo » el campo, del cambio
de campo » de cambio, el campo
campo y » campo de
raul la » raul a, raul roa

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: (( ediciones del campo y la paz ; ) OR ( medicion de campo raul la pau ; ))~.
• Adding a wildcard symbol may retrieve word variants: (( ediciones del campo y la paz ; ) or ( medicion de campo raul la pau ; ))*.