Perhaps you should try some spelling variations:
ventilation algorithm » estimation algorithm, estimation algorithms
evolution algorithm » solution algorithm, evolutionary algorithm, convolution algorithms
passive ventilation » adaptive ventilation, invasive ventilation
modified passive » modified adaptive

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( modified dispersive evolution algorithm ) OR ( modified passive ventilation algorithm ))~".
• Adding a wildcard symbol may retrieve word variants: (( modified dispersive evolution algorithm ) OR ( modified passive ventilation algorithm ))*.