Perhaps you should try some spelling variations:
"modified multiobjective predation algorithms" » "modified multiobjective optimization algorithms", "modified multiobjective design algorithms", "modified multiobjective predators algorithm", "modified multiobjective estimation algorithms", "modified multiobjective approximation algorithms", "modified multiobjective allocation algorithms", "modified multiobjective predators algorithms"
"modified objective predation algorithm" » "modified objective allocation algorithm", "modified objective predators algorithm", "modified objective estimation algorithm"

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