Perhaps you should try some spelling variations:
ediciones de » edicion de, condiciones de
edicion del » medicion del, edicion de
campus peru » campus per, corpus peru, campos perez
medicion de » medicina de
de campos » de campo, de caminos, de cambios
la pau » la paz
a pau » a paul, a 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: (( ((edicion del) OR (ediciones de)) campus peru a pau ; ) OR ( medicion de campos de la pau ; ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((edicion del) OR (ediciones de)) campus peru a pau ; ) or ( medicion de campos de la pau ; ))~".
• Adding a wildcard symbol may retrieve word variants: (( ((edicion del) OR (ediciones de)) campus peru a pau ; ) or ( medicion de campos de la pau ; ))*.