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

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( game optimisation algorithm ) or ( parameter optimisation algorithmss ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( game optimisation algorithm ) OR ( parameter optimisation algorithmss )).
• Adding a wildcard symbol may retrieve word variants: (( game optimisation algorithm ) or ( parameter optimisation algorithmss ))*.