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