Perhaps you should try some spelling variations:
estimation algorithmss » estimation algorithm, optimization algorithms
allocation estimation » allocation optimization, motion estimation
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
robust estimation » robust optimization, pose estimation, risk 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: (( allocation estimation algorithmss ) OR ( robust estimation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (( allocation estimation algorithmss ) or ( robust estimation algorithms ))*.