Perhaps you should try some spelling variations:
estimation algorithmss » estimation algorithm, optimization algorithms
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
parameter estimation » parameter estimates, parameter optimization
cost estimation » pose estimation, risk estimation, cover estimations

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

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