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

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

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