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"
"_ optimized algorithm" » "_ optimized algorithms", "_ optimizer algorithms"

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

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