Perhaps you should try some spelling variations:
coleccion practica » coleccion didactica
mexicana una » mexicana a, mexicana de, mexico una
practica de » practicas de
y academica » y academia, y academicos, _ academic
y academico » y academicos, lo academico, un academico
mexicana en » mexicana 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 ((y academica) or (y academico)) ((mexicana una) OR (mexicana en)) cirugia.~.
• If you are trying to use Boolean operators, they must be ALL CAPS: coleccion practica de ((y academica) OR (y academico)) ((mexicana una) OR (mexicana en)) cirugia..
• The words AND, OR and NOT may confuse the search; try adding quotes: "coleccion practica de ((y academica) or (y academico)) ((mexicana una) OR (mexicana en)) cirugia.".
• Adding a wildcard symbol may retrieve word variants: coleccion practica de ((y academica) or (y academico)) ((mexicana una) OR (mexicana en)) cirugia.*.