Perhaps you should try some spelling variations:
adicciones sin » adicciones a
edicion de » medicion de
campo base » como base, campo las, campo caso
sin campos » en campos, saz campos, con campos
de campo » de cambio, el campo
base les » base las, base de, base en
les pra » les pasa

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 de campo base les pra ; ) OR ( adicciones sin campos ((el largo) OR (lo largo)) la ; ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( edicion de campo base les pra ; ) or ( adicciones sin campos ((el largo) OR (lo largo)) la ; ))~".
• Adding a wildcard symbol may retrieve word variants: (( edicion de campo base les pra ; ) or ( adicciones sin campos ((el largo) OR (lo largo)) la ; ))*.