Perhaps you should try some spelling variations:
"binary state chimp optimization algorithm" » "binary state whale optimization algorithm" (Expand Search), "binary rat chimp optimization algorithm" (Expand Search)
"binary map based optimization algorithm" » "binary rat based optimization 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: (("binary map based optimization algorithm") OR ("binary state chimp optimization algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"binary map based optimization algorithm\") OR (\"binary state chimp optimization algorithm\"))*".
• Removing quotes may allow a broader search: (( binary map based optimization algorithm ) OR ( binary state chimp optimization algorithm ))*.