Perhaps you should try some spelling variations:
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
male optimisation » game optimization, market optimization, stage optimization
qoe optimisation » qoe optimization, _ optimisation, game optimization
modified qoe » modified _, modified bi1, modified df

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