Perhaps you should try some spelling variations:
codon optimization » wolf optimization (Expand Search)
path optimization » swarm optimization (Expand Search), whale optimization (Expand Search), based optimization (Expand Search)
linac based » lines based (Expand Search)
binary mask » binary image (Expand Search)
based path » based pa (Expand Search), based pathway (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 path optimization algorithm ) OR ( binary mask codon optimization algorithm ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( linac based path optimization algorithm ) OR ( binary mask codon optimization algorithm ))".
• Adding a wildcard symbol may retrieve word variants: (( linac based path optimization algorithm ) OR ( binary mask codon optimization algorithm ))*.