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

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( modified parameter optimization algorithm ) or ( modified bi1 optimisation algorithms ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified parameter optimization algorithm ) OR ( modified bi1 optimisation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (( modified parameter optimization algorithm ) or ( modified bi1 optimisation algorithms ))*.