Perhaps you should try some spelling variations:
coleccion practicas » coleccion practica, coleccion didactica, coleccion actas
academicos mexico » economicos mexico, academico excmo, catolicos mexico
academico leido » academico electo, academico aleman
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 practicas de en ((academicos mexico) or (academico leido)) de cirugia.~.
• If you are trying to use Boolean operators, they must be ALL CAPS: coleccion practicas de en ((academicos mexico) OR (academico leido)) de cirugia..
• Adding a wildcard symbol may retrieve word variants: coleccion practicas de en ((academicos mexico) or (academico leido)) de cirugia.*.