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

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( modified multiobjective estimation algorithms ) OR ( modified orca evolution algorithm ))~".
• Adding a wildcard symbol may retrieve word variants: (( modified multiobjective estimation algorithms ) OR ( modified orca evolution algorithm ))*.