Perhaps you should try some spelling variations:
coleccion practica » coleccion didactica
practica de » practicas de
mexicano la » mexicano de, mexico la, mexicano en
a academia » la academia, y academia, una academia
mexicana a » mexicana _, mexicana y, mexicana una
de a » de la, de _

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 a academia ((mexicana a) or (mexicano la)) cirugia.~.
• If you are trying to use Boolean operators, they must be ALL CAPS: coleccion practica de a academia ((mexicana a) OR (mexicano la)) cirugia..
• Adding a wildcard symbol may retrieve word variants: coleccion practica de a academia ((mexicana a) or (mexicano la)) cirugia.*.