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