Perhaps you should try some spelling variations:
multiobjective optimisation » multiobjective optimization, objective optimization
evolutionary algorithm » evolution algorithm, solution algorithm
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
co evolutionary » co evolution
modified co » modified _, modified df, modified orca

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

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