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