Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
ventilation algorithms » estimation algorithms, estimation algorithm, convolution algorithms
invasive ventilation » adaptive ventilation
aging optimization » staffing optimization, game optimization
modified invasive » modified passive
modified aging » modified caging

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 algorithms ) OR ( modified aging optimization algorithms ))~".
• Adding a wildcard symbol may retrieve word variants: (( modified invasive ventilation algorithms ) OR ( modified aging optimization algorithms ))*.