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