Perhaps you should try some spelling variations:
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
estimations algorithm » estimation algorithm, optimisation algorithm
robust estimation » robust optimization, pose estimation, risk estimation
cover estimations » pose estimation

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( robust estimation algorithms ) or ( cover estimations algorithm ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( robust estimation algorithms ) OR ( cover estimations algorithm ))*.