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