Perhaps you should try some spelling variations:
optimisation algorithms » optimization algorithms, estimation algorithms, estimation algorithm
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
market optimisation » market optimization
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: (( market optimisation algorithm ) OR ( qoe optimisation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (( market optimisation algorithm ) or ( qoe optimisation algorithms ))*.