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

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( modified qoe optimization algorithm ) or ( modified passive ventilation algorithm ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified qoe optimization algorithm ) OR ( modified passive ventilation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (( modified qoe optimization algorithm ) or ( modified passive ventilation algorithm ))*.