Perhaps you should try some spelling variations:
optimization algorithm » optimization algorithms, estimation algorithm, estimation algorithms
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
qoe optimisation » qoe optimization, _ optimisation, game optimization
attribute » attributed, attributes

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: (( qoe optimisation algorithm ) OR ( attribute optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( qoe optimisation algorithm ) or ( attribute optimization algorithm ))*.