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

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: coleccion practicas de ((((y academico) or (y academicos))) or (del academico)) excmo sr cirugia.~.
• If you are trying to use Boolean operators, they must be ALL CAPS: coleccion practicas de ((((y academico) OR (y academicos))) OR (del academico)) excmo sr cirugia..
• Adding a wildcard symbol may retrieve word variants: coleccion practicas de ((((y academico) or (y academicos))) or (del academico)) excmo sr cirugia.*.