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