Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithms" » "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithms", "modified multiobjective estimation algorithm"
"when learning method algorithm" » "when learning mom algorithm", "when learning methods algorithm", "when graining methods algorithm", "when learning emotion algorithm", "deep learning method algorithm", "how learning method algorithm", "shot learning method algorithm"

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