Perhaps you should try some spelling variations:
area rural » areas rurales
area caso » areas case, marta caso, area cuao
campo del » campo de, campos de, campo en
peset la » pese a, petit la
de campo » de cambio, el campo
del loa » de loa, del la, del los
loa paz » mora paz

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( ediciones ((area caso) or (area rural)) peset la paz ; ) or ( medicina de campo del loa paz ; ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ediciones ((area caso) OR (area rural)) peset la paz ; ) OR ( medicina de campo del loa paz ; )).
• Adding a wildcard symbol may retrieve word variants: (( ediciones ((area caso) or (area rural)) peset la paz ; ) or ( medicina de campo del loa paz ; ))*.