Perhaps you should try some spelling variations:
comercio interior » comercio exterior, comercio interno, mercado interior
interior del » interior de, exterior de, superior del
medicion de » medicina de
caminos de » camino de
accion y » accion de
del paz » del pan, del par, del paf
los pau » las pau

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: (( accion y comercio interior del paz ; ) OR ( medicion de caminos de los pau ; ))~.
• Adding a wildcard symbol may retrieve word variants: (( accion y comercio interior del paz ; ) or ( medicion de caminos de los pau ; ))*.