Perhaps you should try some spelling variations:
ventilation algorithms » estimation algorithms, estimation algorithm, convolution algorithms
optimization algorithm » optimization algorithms, optimisation algorithm, estimation algorithm
invasive ventilation » adaptive ventilation
modified invasive » modified passive
adam optimization » game optimization, stage optimization, _ optimization
modified adam » modified df, modified near

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 algorithms ) OR ( modified adam optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified invasive ventilation algorithms ) or ( modified adam optimization algorithm ))*.