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