Perhaps you should try some spelling variations:
"arte colony optimization algorithm" » "parte colony optimization algorithm" (Expand Search), "arte colon optimization algorithm" (Expand Search), "arte colony optimizacion algorithm" (Expand Search)
"ant colony optimisation algoritmo" » "ant colon optimisation algoritmo" (Expand Search), "ante colony optimisation algoritmo" (Expand Search), "anti colony optimisation algoritmo" (Expand Search), "kant colony optimisation algoritmo" (Expand Search), "ant colony optimizacion algoritmo" (Expand Search)

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