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 based optimisation algorithms" » "modified based optimization algorithms", "modified based estimation algorithms", "modified based estimation algorithm", "modified based optimization algorithmss", "modified based estimation algorithmss", "modified game optimization algorithms", "modified male optimisation algorithms"

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