Perhaps you should try some spelling variations:
optimization algorithmss » optimization algorithms, estimation algorithms, estimation algorithm
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
some optimisation » game optimization, qoe optimization, stage optimization
parameter » parameters

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: (( some optimisation algorithm ) OR ( parameter optimization algorithmss ))~.
• Adding a wildcard symbol may retrieve word variants: (( some optimisation algorithm ) or ( parameter optimization algorithmss ))*.