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

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