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
using method » nursing methods, focusing method, using metal
code » core

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( code using method algorithm ) OR ( modified invasive ventilation algorithm ))~".
• Adding a wildcard symbol may retrieve word variants: (( code using method algorithm ) OR ( modified invasive ventilation algorithm ))*.