Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithm" » "modified multiobjective optimization algorithms", "modified multiobjective estimation algorithm", "modified multiobjective estimation algorithms"
"modified made optimisation algorithm" » "modified made optimization algorithms", "modified made estimation algorithm", "modified made estimation algorithms", "modified game optimization algorithm", "modified market optimization algorithm", "modified stage optimization algorithm", "modified male optimisation algorithm", "modified adam optimisation algorithm", "modified df optimisation algorithm"

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