Perhaps you should try some spelling variations:
guided optimization » model optimization (Expand Search)
based optimization » whale optimization (Expand Search)
linac based » lines based (Expand Search)
based based » based case (Expand Search), based basis (Expand Search), ranked based (Expand Search)
binary ct » binary _ (Expand Search), binary b (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: (( linac based based optimization algorithm ) OR ( binary ct guided optimization algorithm ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( linac based based optimization algorithm ) OR ( binary ct guided optimization algorithm ))".
• Adding a wildcard symbol may retrieve word variants: (( linac based based optimization algorithm ) OR ( binary ct guided optimization algorithm ))*.