Perhaps you should try some spelling variations:
"modified multiobjective estimation algorithm" » "modified multiobjective optimization algorithm"
"modified notion optimization algorithmss" » "modified notion optimization algorithms", "modified notion optimisation algorithm", "modified notion estimation algorithms", "modified network optimization algorithmss", "modified policy optimization algorithmss", "modified allocation optimization algorithmss"

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