Perhaps you should try some spelling variations:
ernesto perez » crespo perez
medicina del » medicina de
del ernesto » de ernesto, fidel ernesto, joel ernesto
medicion y » mediacion y, edicion y, medicion de
y campus » y campos, y camps, y camus
poder el » poder del, poder de
perez l » perez la, perez al, perez a
l paz » la paz, y paz, m paz

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( medicion y campus ((poder el) OR (poder en)) pan ; ) or ( medicina del ernesto perez l paz ; ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( medicion y campus ((poder el) OR (poder en)) pan ; ) OR ( medicina del ernesto perez l paz ; ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( medicion y campus ((poder el) OR (poder en)) pan ; ) or ( medicina del ernesto perez l paz ; ))*".