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 nacl » modified male, modified near, modified orca
nacl solution » exact solution, nodal solution

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( modified nacl solution algorithm ) OR ( modified objective optimization algorithm ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( modified nacl solution algorithm ) OR ( modified objective optimization algorithm ))".
• Adding a wildcard symbol may retrieve word variants: (( modified nacl solution algorithm ) OR ( modified objective optimization algorithm ))*.