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

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("risk optimized algorithm") or ((("_ optimization algorithms") or ("_ optimisation algorithm"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("risk optimized algorithm") OR ((("_ optimization algorithms") OR ("_ optimisation algorithm")))).
• Removing quotes may allow a broader search: (( risk optimized algorithm ) or ((( _ optimization algorithms ) or ( _ optimisation algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("risk optimized algorithm") or ((("_ optimization algorithms") or ("_ optimisation algorithm"))))*.