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

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

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