Perhaps you should try some spelling variations:
"modified notion optimisation algorithm" » "modified notion optimization algorithms", "modified notion estimation algorithm", "modified notion estimation algorithms", "modified network optimization algorithm"
"modified caging predation algorithm" » "modified caging predators algorithm", "modified caging estimation algorithm", "modified aging predation algorithm", "modified changing predation algorithm", "modified charging predation algorithm"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("modified caging predation algorithm") OR ("modified notion optimisation algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified caging predation algorithm\") OR (\"modified notion optimisation algorithm\"))*".
• Removing quotes may allow a broader search: (( modified caging predation algorithm ) OR ( modified notion optimisation algorithm ))*.