Perhaps you should try some spelling variations:
"modified multiobjective optimisation algorithm" » "modified multiobjective optimization algorithm", "modified objective optimization algorithm", "modified multiobjective optimization algorithms", "modified multiobjective estimation algorithm", "modified multiobjective estimation algorithms"
"modified df optimization algorithmss" » "modified df optimization algorithms", "modified df estimation algorithms", "modified df estimation algorithm", "modified _ optimization algorithmss", "modified qoe optimization algorithmss", "modified _ optimisation algorithmss", "modified adam optimization algorithmss", "modified bi1 optimization algorithmss"

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 df optimization algorithmss\") OR (\"modified multiobjective optimisation algorithm\"))~".
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• Adding a wildcard symbol may retrieve word variants: (("modified df optimization algorithmss") OR ("modified multiobjective optimisation algorithm"))*.