Perhaps you should try some spelling variations:
"_ estimation algorithms" » "_ optimization algorithms", "_ optimisation algorithm", "_ approximation algorithms"
"qoe optimized algorithm" » "qoe optimized algorithms", "qoe optimizer algorithms", "_ optimized algorithm"
"game estimation algorithm" » "pose estimation algorithm", "game optimization algorithm"

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: (((("game estimation algorithm") OR ("_ estimation algorithms"))) OR ("qoe optimized algorithm"))~.
• Removing quotes may allow a broader search: (((( game estimation algorithm ) or ( _ estimation algorithms ))) or ( qoe optimized algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (((("game estimation algorithm") or ("_ estimation algorithms"))) or ("qoe optimized algorithm"))*.