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

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