Perhaps you should try some spelling variations:
"binary basic level optimization algorithm" » "binary basic global optimization algorithm" (Expand Search), "binary basis level optimization algorithm" (Expand Search)
"binary pairs based optimization algorithm" » "binary pair based 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 basic level optimization algorithm\") OR (\"binary pairs based optimization algorithm\"))~".
• Removing quotes may allow a broader search: (( binary basic level optimization algorithm ) OR ( binary pairs based optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("binary basic level optimization algorithm") OR ("binary pairs based optimization algorithm"))*.