Perhaps you should try some spelling variations:
"modified multiobjective optimizer algorithmss" » "modified multiobjective optimization algorithmss", "modified multiobjective optimizer algorithms", "modified multiobjective optimized algorithms"
"modified parameter optimized algorithm" » "modified parameter optimization algorithm", "modified parameter optimized algorithms", "modified parameter optimizer algorithms"

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 optimizer algorithmss") OR ("modified parameter optimized algorithm"))~.
• Removing quotes may allow a broader search: (( modified multiobjective optimizer algorithmss ) or ( modified parameter optimized algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified multiobjective optimizer algorithmss") or ("modified parameter optimized algorithm"))*.