Perhaps you should try some spelling variations:
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
optimized algorithms » optimizer algorithms, optimization algorithms
optimized algorithm » optimizer algorithms
cover estimation » cover estimations, pose estimation, sphere estimation

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