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

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 qoe estimation algorithms ) OR ( modified passive ventilation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified qoe estimation algorithms ) or ( modified passive ventilation algorithm ))*.