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

You may be able to get more results by adjusting your search query.

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