Perhaps you should try some spelling variations:
"primary data surface optimization algorithm" » "primary data storage optimization algorithm" (Expand Search), "primary data swarm optimization algorithm" (Expand Search), "primary data surface modification algorithm" (Expand Search), "primary land surface optimization algorithm" (Expand Search)
"binary data policy optimization algorithm" » "binary data capacity optimization algorithm" (Expand Search), "binary rat policy 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: (("primary data surface optimization algorithm") OR ("binary data policy optimization algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"primary data surface optimization algorithm\") OR (\"binary data policy optimization algorithm\"))".
• Removing quotes may allow a broader search: (( primary data surface optimization algorithm ) OR ( binary data policy optimization algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("primary data surface optimization algorithm") OR ("binary data policy optimization algorithm"))*.