Perhaps you should try some spelling variations:
edicion de » medicion de
campo del » campo de, campos de, campo en
de campos » de caminos, de cambios
de campo » de cambio, el campo
y campos » y cambios
del loa » de loa, del la, del los
loa paz » mora paz
raul la » raul a, raul roa

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 campo del loa paz ; ) or ( mediciones ((y campos) OR (de campos)) raul la paz ; ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( edicion de campo del loa paz ; ) OR ( mediciones ((y campos) OR (de campos)) raul la paz ; ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( edicion de campo del loa paz ; ) or ( mediciones ((y campos) OR (de campos)) raul la paz ; ))*".