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

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• Removing quotes may allow a broader search: (( modified make evolution algorithm ) OR ( modified multiobjective estimation algorithms ))~.
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