Perhaps you should try some spelling variations:
ediciones un » ediciones en, mediciones en, ediciones con
crespo perez » ernesto perez, cueto perez, crespo pedro
edicion del » medicion del, edicion de, medicion de
perez leyva » perez leiva, perez leyly, mendez leyva
del crespo » del creston, del cristo, del credo
un camino » el camino
leyva i » leyva y, leiva i, leyva r

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: (( edicion del crespo perez leyva i ; ) OR ( ediciones un camino de la paz ; ))~.
• Adding a wildcard symbol may retrieve word variants: (( edicion del crespo perez leyva i ; ) or ( ediciones un camino de la paz ; ))*.