Perhaps you should try some spelling variations:
"risk optimisation algorithm" » "risk optimization algorithms", "risk estimation algorithm", "risk estimation algorithms", "_ optimisation algorithm"
"_ optimize algorithmss" » "_ optimized algorithms", "_ optimizer algorithms", "_ optimized algorithmss", "_ optimise algorithmss"
"qoe optimized algorithm" » "qoe optimized algorithms", "qoe optimizer algorithms", "_ 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 optimisation algorithm") or ((("qoe optimized algorithm") or ("_ optimize algorithmss"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("risk optimisation algorithm") OR ((("qoe optimized algorithm") OR ("_ optimize algorithmss")))).
• Removing quotes may allow a broader search: (( risk optimisation algorithm ) or ((( qoe optimized algorithm ) or ( _ optimize algorithmss )))).
• Adding a wildcard symbol may retrieve word variants: (("risk optimisation algorithm") or ((("qoe optimized algorithm") or ("_ optimize algorithmss"))))*.