Perhaps you should try some spelling variations:
"modified multiobjective estimation algorithms" » "modified multiobjective optimization algorithms", "modified multiobjective estimation algorithm", "modified multiobjective optimisation algorithm"
"machines learning solution algorithm" » "machines learning evolution algorithm", "machines learning convolution algorithms", "machines learning evolutionary algorithm", "machine learning solution algorithm", "active learning solution algorithm", "mapping learning solution algorithm", "machines learning convolution algorithm", "machines learning emotion algorithm"

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