Perhaps you should try some spelling variations:
ventilation algorithm » estimation algorithm, estimation algorithms, evolution algorithm
adaptive ventilation » adaptive quantization, invasive ventilation
game approximation » time approximation, one approximation, _ approximation
modified adaptive » modified passive
modified game » modified male, modified adam

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 adaptive ventilation algorithm ) OR ( modified game approximation algorithms ))~".
• Adding a wildcard symbol may retrieve word variants: (( modified adaptive ventilation algorithm ) OR ( modified game approximation algorithms ))*.