Perhaps you should try some spelling variations:
optimisation algorithms » optimization algorithms, estimation algorithms, estimation algorithm
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
parameter optimisation » parameter optimization, parameter estimation
bi1 optimisation » _ optimisation, _ optimization, qoe optimization
modified bi1 » modified _

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 bi1 optimisation algorithm ) OR ( modified parameter optimisation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified bi1 optimisation algorithm ) or ( modified parameter optimisation algorithms ))*.