Perhaps you should try some spelling variations:
medicion en » mediacion en, edicion en, medicion e
del cambio » de cambio
campus per » campus de
en campus » el campus, en campos, un campus
modelo a » modelo de, modelo en
per la » poder la
la pau » la paz
a pau » a paul, a paz

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( medicion ((del cambio) OR (el cambio)) modelo a pau ; ) or ( medicion en campus per la pau ; ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( medicion ((del cambio) OR (el cambio)) modelo a pau ; ) OR ( medicion en campus per la pau ; ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( medicion ((del cambio) OR (el cambio)) modelo a pau ; ) or ( medicion en campus per la pau ; ))*".