Perhaps you should try some spelling variations:
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
estimates algorithms » estimation algorithms, estimation algorithm, optimized algorithms
parameter estimates » parameter estimation
qoe optimisation » qoe optimization, _ optimisation, game optimization

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: (( parameter estimates algorithms ) OR ( qoe optimisation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( parameter estimates algorithms ) or ( qoe optimisation algorithm ))*.