Perhaps you should try some spelling variations:
coleccion practica » coleccion didactica
mexicana una » mexicana en, mexicana a, mexicana de
practica de » practicas de
y academica » y academia, y academicos, _ academic
y academico » y academicos, lo academico, un academico
una cirugia » en cirugia, la cirugia, a 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 practica de ((y academica) or (y academico)) mexicana una cirugia.~.
• If you are trying to use Boolean operators, they must be ALL CAPS: coleccion practica de ((y academica) OR (y academico)) mexicana una cirugia..
• Adding a wildcard symbol may retrieve word variants: coleccion practica de ((y academica) or (y academico)) mexicana una cirugia.*.