Perhaps you should try some spelling variations:
optimisation algorithms » optimisation algorithm, optimization algorithms, estimation algorithms
robust optimisation » robust optimization
game optimization » stage optimization, qoe optimization, market optimization
qoe optimisation » qoe optimization, _ optimisation, _ 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: (( robust optimisation algorithms ) OR ( ((qoe optimisation) OR (game optimization)) algorithm ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( robust optimisation algorithms ) or ( ((qoe optimisation) OR (game optimization)) algorithm ))~".
• Adding a wildcard symbol may retrieve word variants: (( robust optimisation algorithms ) or ( ((qoe optimisation) OR (game optimization)) algorithm ))*.