Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithm, optimizer algorithms
estimation algorithms » estimation algorithm, optimisation algorithm, approximation algorithms
optimized algorithms » optimized algorithm, optimizer algorithms
risk estimation » 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: (( pose ((optimization algorithms) or (optimized algorithms)) ) or ( risk estimation algorithms ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( pose ((optimization algorithms) OR (optimized algorithms)) ) OR ( risk estimation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (( pose ((optimization algorithms) or (optimized algorithms)) ) or ( risk estimation algorithms ))*.