Perhaps you should try some spelling variations:
coleccion practicas » coleccion practica, coleccion didactica, coleccion actas
y academica » y academia, y academicos, _ academic
y academico » y academicos, lo academico, un academico
mexicana la » mexicana a, mexicano la, mexicana una
la cirugia » en cirugia, de cirugia

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 academica) OR (y academico)) mexicana la cirugia.~.
• Adding a wildcard symbol may retrieve word variants: coleccion practicas de ((y academica) or (y academico)) mexicana la cirugia.*.