Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
ventilation algorithm » estimation algorithm, estimation algorithms, evolution algorithm
invasive ventilation » adaptive ventilation
modified invasive » modified passive
bi1 optimization » _ optimization, qoe optimization, game optimization
modified bi1 » modified _

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 bi1 optimization algorithms ) OR ( modified invasive ventilation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified bi1 optimization algorithms ) or ( modified invasive ventilation algorithm ))*.