Perhaps you should try some spelling variations:
coleccion practicas » coleccion practica, coleccion didactica, coleccion actas
los academicos » textos academicos
lo academico » ano academico, del academico, _ academic
y academico » y academicos, y academica, un academico
la cirugia » en cirugia, de cirugia
excmo la » excmo sr, excmo e

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: coleccion practicas de ((y academico) OR (((lo academico) OR (los academicos)))) excmo la cirugia.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "coleccion practicas de ((y academico) or (((lo academico) OR (los academicos)))) excmo la cirugia.~".
• Adding a wildcard symbol may retrieve word variants: coleccion practicas de ((y academico) or (((lo academico) OR (los academicos)))) excmo la cirugia.*.