Perhaps you should try some spelling variations:
ventilation algorithm » estimation algorithm, estimation algorithms, evolution algorithm
invasive ventilation » adaptive ventilation
modified invasive » modified passive
method algorithm » mom algorithm
nursing method » nursing methods
code nursing » code using, care nursing, models nursing

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: (( modified invasive ventilation algorithm ) OR ( code nursing method algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified invasive ventilation algorithm ) or ( code nursing method algorithm ))*.