Perhaps you should try some spelling variations:
optimisation algorithms » optimisation algorithm, optimization algorithms, estimation algorithms
parameter estimation » parameter estimates, parameter optimization
game optimisation » game optimization, stage optimization, _ optimisation
modified game » modified male, modified adam

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