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