Perhaps you should try some spelling variations:
medicion de » medicina de
acciones el » acciones del, acciones en, acciones al
de campos » de campo, de caminos, de cambios
el campo » el cambio, el camino
campos e » campos de, campos el, campos en
campo y » campo de
la pau » la paz

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: (( acciones el campo y la pau ; ) OR ( medicion de campos e ((lao pau) OR (las pau)) ; ))~.
• Adding a wildcard symbol may retrieve word variants: (( acciones el campo y la pau ; ) or ( medicion de campos e ((lao pau) or (las pau)) ; ))*.