Perhaps you should try some spelling variations:
model optimization » codon optimization (Expand Search), global optimization (Expand Search), based optimization (Expand Search)
task optimization » based optimization (Expand Search), phase optimization (Expand Search), path optimization (Expand Search)
linac based » lines based (Expand Search)
based task » based case (Expand Search), based test (Expand Search)
apc model » bapc model (Expand Search), a model (Expand Search), ai model (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 task optimization algorithm ) OR ( binary apc model optimization algorithm ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( linac based task optimization algorithm ) OR ( binary apc model optimization algorithm ))".
• Adding a wildcard symbol may retrieve word variants: (( linac based task optimization algorithm ) OR ( binary apc model optimization algorithm ))*.