Perhaps you should try some spelling variations:
academica mexicana » academia mexicana, academica diana, economica mexicana
coleccion practica » coleccion didactica
mexicana y » mexicana _, mexicana de, mexicana en
y cirugia » en cirugia, de cirugia, la cirugia
de y » de a, fe y, de j
de 3 » de a

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: coleccion practica ((((de y) OR (de _))) OR (de 3)) academica mexicana y cirugia.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "coleccion practica ((((de y) OR (de _))) or (de 3)) academica mexicana y cirugia.~".
• Adding a wildcard symbol may retrieve word variants: coleccion practica ((((de y) OR (de _))) or (de 3)) academica mexicana y cirugia.*.