Perhaps you should try some spelling variations:
ventilation algorithm » estimation algorithm, estimation algorithms, evolution algorithm
passive ventilation » adaptive ventilation, invasive ventilation
emotion algorithm » evolution algorithm, estimation algorithm, predation algorithm
modified passive » modified adaptive
learning emotion » learning method

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