Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithms" » "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithms", "modified multiobjective estimation algorithm"
"modified trace evolution algorithm" » "modified trace solution algorithm", "modified trace evolutionary algorithm", "modified trace convolution algorithms", "modified time evolution algorithm", "modified traces evolution algorithm", "modified male evolution algorithm", "modified orca evolution algorithm"

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