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

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• Performing a fuzzy search may retrieve terms with similar spellings: (("modified multiobjective predation algorithms") or ("modified objective estimation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified multiobjective predation algorithms") OR ("modified objective estimation algorithm"))*.
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