Perhaps you should try some spelling variations:
mediciones e » mediciones de, mediciones y, ediciones de
edicion dle » edicion de, medicion de, adicion de
campus peru » corpus peru, campos perez, campus poder
campus per » campus de
dle campo » de campo, el campo, del campo
un paz » en paz, un par
pan » plan

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 dle campo de un paz ; ) OR ( mediciones e ((campus peru) OR (campus per)) el pan ; ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( edicion dle campo de un paz ; ) or ( mediciones e ((campus peru) OR (campus per)) el pan ; ))~".
• Adding a wildcard symbol may retrieve word variants: (( edicion dle campo de un paz ; ) or ( mediciones e ((campus peru) OR (campus per)) el pan ; ))*.