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

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