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 adam optimisation algorithmss" » "modified adam optimization algorithms", "modified adam estimation algorithms", "modified adam estimation algorithm", "modified adam optimization algorithmsss", "modified adam estimation algorithmss", "modified adam estimation algorithmsss", "modified _ optimisation algorithmss", "modified game optimization algorithmss", "modified df optimisation algorithmss", "modified near optimisation algorithmss"

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