Perhaps you should try some spelling variations:
optimisation algorithm » optimization algorithms, estimation algorithm
estimation algorithms » estimation algorithm, optimization algorithms, approximation algorithms
passive estimation » pose estimation
adam optimisation » _ optimisation, game optimization
modified passive » modified adaptive
modified adam » modified df, modified near

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 adam optimisation algorithm ) OR ( modified passive estimation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified adam optimisation algorithm ) or ( modified passive estimation algorithms ))*.