Perhaps you should try some spelling variations:
campos mendez » ramos mendez, carlos mendez, campos manuel
edicion de » medicion de
de campos » de campo, de caminos, de cambios
mendez la » mendez el
campos el » campos de, campos la, campos _
el las » del las, al las, el lai
pau » paul

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

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