Perhaps you should try some spelling variations:
campus poder » campus per, cambio poder
edicion de » medicion de
campo del » campo de, campos de, campo en
campus de » campos de, campo de, corpus de
de campo » de cambio, el campo
del laan » der laan, del latin, del llano
laan pau » la pau, las pau
del pais » el pais

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 campo del laan pau ; ) OR ( edicion de ((campus poder) OR (campus de)) del pais ; ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( edicion de campo del laan pau ; ) or ( edicion de ((campus poder) OR (campus de)) del pais ; ))~".
• Adding a wildcard symbol may retrieve word variants: (( edicion de campo del laan pau ; ) or ( edicion de ((campus poder) OR (campus de)) del pais ; ))*.