Perhaps you should try some spelling variations:
acciones en » acciones de, accion en, acciones y
medicion de » medicina de
campos ines » campos tiene
de campos » de campo, de caminos, de cambios
en campos » en campo, y campos
campos e » campos de, campos el, campos en
loao pau » las pau

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: (( medicion de campos e loao pau ; ) OR ( acciones en campos ines ((la pau) OR (la paz)) ; ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( medicion de campos e loao pau ; ) or ( acciones en campos ines ((la pau) OR (la paz)) ; ))~".
• Adding a wildcard symbol may retrieve word variants: (( medicion de campos e loao pau ; ) or ( acciones en campos ines ((la pau) OR (la paz)) ; ))*.