Perhaps you should try some spelling variations:
adicciones sin » adicciones a
edicion del » medicion del, edicion de, medicion de
del campos » del campo, de campos, del campus
sin campo » spain campo, un campo, en campo
campo y » campo de
la pau » la paz
y loa » y los, y lea

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( edicion del campos de la pau ; ) or ( adicciones sin campo y loa pau ; ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( edicion del campos de la pau ; ) OR ( adicciones sin campo y loa pau ; )).
• Adding a wildcard symbol may retrieve word variants: (( edicion del campos de la pau ; ) or ( adicciones sin campo y loa pau ; ))*.