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 bi1 » modified _
bi1 solution » _ solution

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 objective optimization algorithm ) OR ( modified bi1 solution algorithm ))~".
• Adding a wildcard symbol may retrieve word variants: (( modified objective optimization algorithm ) OR ( modified bi1 solution algorithm ))*.