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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified adaptive ventilation algorithms ) OR ( modified learning solution algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified adaptive ventilation algorithms ) or ( modified learning solution algorithm ))*.