Perhaps you should try some spelling variations:
"risk estimation algorithms" » "risk estimation algorithm", "risk optimization algorithms", "risk optimisation algorithm", "pose estimation algorithms"
"_ optimizer algorithms" » "_ optimized algorithm", "_ optimization algorithms"
"_ optimized algorithms" » "_ optimized algorithm", "_ optimization 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: "((((\"_ optimizer algorithms\") OR (\"_ optimized algorithms\"))) OR (\"risk estimation algorithms\"))~".
• Removing quotes may allow a broader search: (((( _ optimizer algorithms ) OR ( _ optimized algorithms ))) OR ( risk estimation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (((("_ optimizer algorithms") OR ("_ optimized algorithms"))) OR ("risk estimation algorithms"))*.