Perhaps you should try some spelling variations:
"binary based level optimization algorithm" » "binary based global optimization algorithm" (Expand Search), "binary based based optimization algorithm" (Expand Search)
"linac camera model optimization algorithm" » "linac camera motor optimization algorithm" (Expand Search), "linac camera monkey optimizations algorithm" (Expand Search), "linac camera global 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 based level optimization algorithm") OR ("linac camera model optimization algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"binary based level optimization algorithm\") OR (\"linac camera model optimization algorithm\"))".
• Removing quotes may allow a broader search: (( binary based level optimization algorithm ) OR ( linac camera model optimization algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("binary based level optimization algorithm") OR ("linac camera model optimization algorithm"))*.