Perhaps you should try some spelling variations:
"_ estimation algorithmss" » "_ estimation algorithms", "_ optimization algorithms"
"_ optimization algorithm" » "_ optimization algorithms", "_ optimisation algorithm", "_ estimation 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: (((("_ estimation algorithmss") or ("_ optimization algorithm"))) or ("game estimation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("_ estimation algorithmss") OR ("_ optimization algorithm"))) OR ("game estimation algorithm")).
• Removing quotes may allow a broader search: (((( _ estimation algorithmss ) or ( _ optimization algorithm ))) or ( game estimation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("_ estimation algorithmss") or ("_ optimization algorithm"))) or ("game estimation algorithm"))*.