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

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 invasive ventilation algorithm ) OR ( modified learning solution algorithm ))~".
• Adding a wildcard symbol may retrieve word variants: (( modified invasive ventilation algorithm ) OR ( modified learning solution algorithm ))*.