Perhaps you should try some spelling variations:
coleccion practica » coleccion didactica
practica de » practicas de
y academica » y academico, y academicos, _ academic
y academia » la academia, _ academic
m cirugia » y cirugia, 4 cirugia, 8 cirugia
a cirugia » la cirugia, y cirugia, en 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 ((y academica) OR (y academia)) diana ((m cirugia) OR (a cirugia)).~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "coleccion practica de ((y academica) OR (y academia)) diana ((m cirugia) or (a cirugia)).~".
• Adding a wildcard symbol may retrieve word variants: coleccion practica de ((y academica) OR (y academia)) diana ((m cirugia) or (a cirugia)).*.