Perhaps you should try some spelling variations:
codon optimization » wolf optimization (Expand Search)
based optimization » whale optimization (Expand Search)
primary crater » primary care (Expand Search), primary driver (Expand Search), primary cancer (Expand Search)
binary basic » binary mask (Expand Search)
crater based » created based (Expand Search), water based (Expand Search), rate based (Expand Search)
basic codon » basic column (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 basic codon optimization algorithm ) OR ( primary crater based optimization algorithm ))~".
• Adding a wildcard symbol may retrieve word variants: (( binary basic codon optimization algorithm ) OR ( primary crater based optimization algorithm ))*.