Perhaps you should try some spelling variations:
"binary _ levels optimization algorithm" » "binary _ level optimization algorithm" (Expand Search), "binary _ gazelle optimization algorithm" (Expand Search)
"binary primaire _ optimization algorithm" » "binary primaires _ optimization algorithm" (Expand Search), "binary primary _ optimization algorithm" (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"binary primaire _ optimization algorithm\") OR (\"binary _ levels optimization algorithm\"))~".
• Removing quotes may allow a broader search: (( binary primaire _ optimization algorithm ) OR ( binary _ levels optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("binary primaire _ optimization algorithm") OR ("binary _ levels optimization algorithm"))*.