Perhaps you should try some spelling variations:
estimation algorithmss » estimation algorithm, optimization algorithms
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
response estimation » response optimization, pose estimation, response association
risk estimation » pose estimation

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( risk estimation algorithmss ) OR ( response estimation algorithms ))~".
• Adding a wildcard symbol may retrieve word variants: (( risk estimation algorithmss ) OR ( response estimation algorithms ))*.