Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
optimizer algorithms » optimized algorithms
optimized algorithm » optimized algorithms
risk optimization » robust optimization, _ optimization, game optimization

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: (( poses ((optimized algorithm) OR (optimizer algorithms)) ) OR ( risk optimization algorithms ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( poses ((optimized algorithm) OR (optimizer algorithms)) ) or ( risk optimization algorithms ))~".
• Adding a wildcard symbol may retrieve word variants: (( poses ((optimized algorithm) OR (optimizer algorithms)) ) or ( risk optimization algorithms ))*.