Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
optimized algorithmss » optimized algorithm, optimizer algorithms
optimized algorithms » optimized algorithm, optimizer algorithms
qoe optimization » game optimization, _ optimization, stage optimization
same » some

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: (( same ((optimized algorithms) OR (optimized algorithmss)) ) OR ( qoe optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (( same ((optimized algorithms) or (optimized algorithmss)) ) or ( qoe optimization algorithms ))*.