Perhaps you should try some spelling variations:
"primary data code optimization algorithm" » "primary data igdt optimization algorithm" (Expand Search), "primary data dog optimization algorithm" (Expand Search), "primary data spider optimization algorithm" (Expand Search)
"binary base based optimization algorithm" » "binary case cased 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: "((\"primary data code optimization algorithm\") OR (\"binary base based optimization algorithm\"))~".
• Removing quotes may allow a broader search: (( primary data code optimization algorithm ) OR ( binary base based optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("primary data code optimization algorithm") OR ("binary base based optimization algorithm"))*.