Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithms" » "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithms", "modified multiobjective estimation algorithm"
"powder forecasting method algorithm" » "powder focusing method algorithm", "powder forecasting mixed algorithm", "powder forecasting mom algorithm"

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified multiobjective optimization algorithms\") OR (\"powder forecasting method algorithm\"))~".
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