Perhaps you should try some spelling variations:
coleccion practicas » coleccion practica, coleccion didactica, coleccion actas
academica durante » academico docente, economica durante, america durante
lo academica » lo academico, y academica, _ academica
la cirugia » en cirugia, de cirugia
a cirugia » y cirugia, en cirugia, de cirugia
de lo » de la

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 practicas de lo academica durante ((la cirugia) OR (a cirugia)).~.
• Adding a wildcard symbol may retrieve word variants: coleccion practicas de lo academica durante ((la cirugia) or (a cirugia)).*.