Perhaps you should try some spelling variations:
medicina del » medicina de
medicion de » medicina de
del campo » el campo, de campo, del cambio
acton la » anton la, actos la, actos las
loa pau » la pau
acto y » actor y, pacto y, tacto y
de loa » de loja, de los, de log

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( medicina del campo de ((acton la) OR (acto y)) ; ) OR ( medicion de caso de loa pau ; ))~.
• Adding a wildcard symbol may retrieve word variants: (( medicina del campo de ((acton la) or (acto y)) ; ) or ( medicion de caso de loa pau ; ))*.