Perhaps you should try some spelling variations:
edicion de » medicion de
campos en » campos el, campos del, campos tem
campo sal » campo del, campo a, campo la
campos e » campos de, campos el, campos _
de campo » de cambio, el campo
la pau » la paz
sal la » sal las, mal la, casal la

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