Perhaps you should try some spelling variations:
delgado garcia » delgado maria
perez delgado » mendez delgado
crespo perez » ernesto perez, cueto perez, crespo pedro
ediciones de » edicion de, condiciones de
claro para » claras para, clave para, cobro para
de campos » de campo, de caminos, de cambios
de claro » de clara, de charo, de clari
a crespo » j crespo, ana crespo, a cristo

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: (( ediciones de campos de claro para ; ) OR ( adiccion a crespo perez delgado garcia ; ))~.
• Adding a wildcard symbol may retrieve word variants: (( ediciones de campos de claro para ; ) or ( adiccion a crespo perez delgado garcia ; ))*.