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

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( modified passive ventilation algorithm ) or ( modified charging solution algorithm ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified passive ventilation algorithm ) OR ( modified charging solution algorithm )).
• Adding a wildcard symbol may retrieve word variants: (( modified passive ventilation algorithm ) or ( modified charging solution algorithm ))*.