Perhaps you should try some spelling variations:
estimation algorithms » optimization algorithms, optimisation algorithm, approximation algorithms
solution algorithm » evolution algorithm, convolution algorithms, evolutionary algorithm
policy estimation » policy optimization, pose estimation, motion estimation
a estimation » _ estimation, a destination, _ estimating
a solution » _ solution, _ solutions, nacl solution

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: (((( a estimation algorithm ) OR ( a solution algorithm ))) OR ( policy estimation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (((( a estimation algorithm ) or ( a solution algorithm ))) or ( policy estimation algorithms ))*.