Perhaps you should try some spelling variations:
multiobjective estimation » multiobjective optimization
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
solution algorithm » evolution algorithm, convolution algorithms, evolutionary algorithm
modified make » modified male
make solution » water solution, nacl solution

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 multiobjective estimation algorithms ) OR ( modified make solution algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified multiobjective estimation algorithms ) or ( modified make solution algorithm ))*.