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