Perhaps you should try some spelling variations:
coleccion practicas » coleccion practica, coleccion didactica, coleccion actas
un academico » ano academico, mundo academico, del academico
lo academico » los academicos, ano academico, del academico
y academico » y academicos, y academica, _ academic
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 (un academico))) OR (lo academico)) excmo la cirugia.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "coleccion practicas de ((((y academico) OR (un academico))) or (lo academico)) excmo la cirugia.~".
• Adding a wildcard symbol may retrieve word variants: coleccion practicas de ((((y academico) OR (un academico))) or (lo academico)) excmo la cirugia.*.