Perhaps you should try some spelling variations:
"binary task chimp optimization algorithm" » "binary task whale optimization algorithm" (Expand Search)
"binary tasks colon optimization algorithm" » "binary tasks motor optimization algorithm" (Expand Search), "binary tasks policy optimization algorithm" (Expand Search), "binary tasks dog optimization algorithm" (Expand Search)

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• Adding a wildcard symbol may retrieve word variants: (("binary task chimp optimization algorithm") OR ("binary tasks colon optimization algorithm"))*.