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

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( some optimisation algorithm ) OR ( parameter estimation algorithms ))~".
• Adding a wildcard symbol may retrieve word variants: (( some optimisation algorithm ) OR ( parameter estimation algorithms ))*.