Perhaps you should try some spelling variations:
mediciones y » mediciones de, medicion y, tradiciones y
medicion de » medicina de
campos raul » campa raul, campos manuel, campos bravo
campo del » campo de, campo en
y campos » y cambios, de campos
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: (( medicion de ((campo del) OR (campos de)) loa paz ; ) or ( mediciones y campos raul la paz ; ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( medicion de ((campo del) OR (campos de)) loa paz ; ) OR ( mediciones y campos raul la paz ; ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( medicion de ((campo del) OR (campos de)) loa paz ; ) or ( mediciones y campos raul la paz ; ))*".