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

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

• Removing quotes may allow a broader search: (( modified game optimization algorithms ) or ( modified passive ventilation algorithm )).