Perhaps you should try some spelling variations:
estimation algorithmss » estimation algorithms, estimation algorithm, optimization algorithms
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
market optimisation » market optimization
game estimation » pose estimation, game optimization

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: (( game estimation algorithmss ) OR ( market optimisation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( game estimation algorithmss ) or ( market optimisation algorithm ))*.