Perhaps you should try some spelling variations:
coleccion practica » coleccion didactica
academicos mexico » economicos mexico, academico excmo, catolicos mexico
academico leido » academico electo, academico aleman
practica de » practicas de
de cirugia » en cirugia, la cirugia
de en » de un, de el, fe en

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 en ((academicos mexico) OR (academico leido)) de cirugia.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "coleccion practica de en ((academicos mexico) OR (academico leido)) de cirugia.".
• Adding a wildcard symbol may retrieve word variants: coleccion practica de en ((academicos mexico) OR (academico leido)) de cirugia.*.