Perhaps you should try some spelling variations:
"modified objective estimation algorithm" » "modified objective optimization algorithm", "modified objective allocation algorithm"
"mapping learning predation algorithm" » "mapping learning predators algorithm", "mapping learning prediction algorithm", "mapping learning emotion algorithm", "machine learning predation algorithm", "enabling learning predation algorithm"

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"mapping learning predation algorithm\") OR (\"modified objective estimation algorithm\"))~".
• Removing quotes may allow a broader search: (( mapping learning predation algorithm ) OR ( modified objective estimation algorithm ))~.
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