Perhaps you should try some spelling variations:
credo pedro » cerezo pedro, crespo pedro, prado pedro
campos per » campus per, campos perez, campos super
edicion y » edicion de
y campos » y cambios, de campos
de credo » del credo, de crudo, du credo
pedro y » pedro a, pedro e, pedro c
per el » ser el, per al, per il

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 y campos per el pan ; ) OR ( medicina de credo pedro y paz ; ))~.
• Adding a wildcard symbol may retrieve word variants: (( edicion y campos per el pan ; ) or ( medicina de credo pedro y paz ; ))*.