Perhaps you should try some spelling variations:
del campo » del cambio
campo del » campo de, campos de, campo en
el campo » el cambio, el camino
de campo » de cambio
vale la » calle la
del loa » de loa, del la, del los
loa pau » la pau
a vale » a valle, _ vale, y vale

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "\"((\\"edicion ((del campo) OR (el campo)) a vale la ;\\") or (\\"medicina de campo del loa pau ;\\"))*\"".
• Removing quotes may allow a broader search: (( edicion ((del campo) OR (el campo)) a vale la ; ) or ( medicina de campo del loa pau ; ))*.