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