Perhaps you should try some spelling variations:
objective optimization » multiobjective optimization
optimization algorithm » optimization algorithms, optimisation algorithm, estimation algorithm
solution algorithm » evolution algorithm, convolution algorithms, evolutionary algorithm
modified mild » modified male, modified seird, modified bi1
mild solution » mild solutions

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 objective optimization algorithm ) OR ( modified mild solution algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified objective optimization algorithm ) or ( modified mild solution algorithm ))*.