Perhaps you should try some spelling variations:
"ant cooling optimization algorithm" » "ant colony optimization algorithm" (Expand Search), "ant colony optimisation algorithm" (Expand Search), "ant scheduling optimization algorithm" (Expand Search)
"a colon optimisation algorithm" » "a colony optimisation algorithm" (Expand Search), "a colony optimization algorithm" (Expand Search), "a wolf optimisation algorithm" (Expand Search), "de colon optimisation algorithm" (Expand Search), "a common optimisation algorithm" (Expand Search), "el colon optimisation algorithm" (Expand Search)

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