Perhaps you should try some spelling variations:
"binary class b optimization algorithm" » "binary class _ optimization algorithm" (Expand Search), "binary class dog optimization algorithm" (Expand Search), "binary class igdt optimization algorithm" (Expand Search)
"binary class based optimization algorithm" » "binary class _ased 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 class b optimization algorithm\") OR (\"binary class based optimization algorithm\"))~".
• Removing quotes may allow a broader search: (( binary class b optimization algorithm ) OR ( binary class based optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("binary class b optimization algorithm") OR ("binary class based optimization algorithm"))*.