Perhaps you should try some spelling variations:
coleccion practica » coleccion didactica
practica de » practicas de
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.

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