Perhaps you should try some spelling variations:
y certificacion » de certificacion (Expand Search), la certificacion (Expand Search), _ certification (Expand Search)
de realizacion » la realizacion (Expand Search), de relacion (Expand Search), de rehabilitacion (Expand Search)
realizacion y » realizaciones y (Expand Search), realizacion de (Expand Search), legalizacion y (Expand Search)
espanola » espana (Expand Search)