Perhaps you should try some spelling variations:
ediciones unaula » ediciones siruela
condicion de » condiciones de
unaula campo » anaya campo, angela campo, laura campo
campo per » campo perez, campo para, campus per
campo der » campo de, campo del, campos del
de campo » de cambio, el campo
per la » poder la
la pau » la paz
der la » poder la, der laan, daher la

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: (( condicion de campo per la pau ; ) OR ( ediciones unaula campo der la pau ; ))~.
• Adding a wildcard symbol may retrieve word variants: (( condicion de campo per la pau ; ) or ( ediciones unaula campo der la pau ; ))*.