Perhaps you should try some spelling variations:
"risk estimation algorithms" » "risk estimation algorithm", "risk optimization algorithms", "risk optimisation algorithm", "pose estimation algorithms"
"don optimized algorithms" » "don optimizer algorithms", "don optimization algorithms", "don optimizer algorithmss"
"_ optimized algorithm" » "_ optimizer algorithms"

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: (((("don optimized algorithms") OR ("_ optimized algorithm"))) OR ("risk estimation algorithms"))~.
• Removing quotes may allow a broader search: (((( don optimized algorithms ) or ( _ optimized algorithm ))) or ( risk estimation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (((("don optimized algorithms") or ("_ optimized algorithm"))) or ("risk estimation algorithms"))*.