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