Perhaps you should try some spelling variations:
required optimization » guided optimization (Expand Search), resource optimization (Expand Search), feature optimization (Expand Search)
whale optimization » swarm optimization (Expand Search)
days required » data required (Expand Search), also required (Expand Search), may require (Expand Search)
image whale » image scale (Expand Search)
binary days » binary data (Expand Search), binary pairs (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: (( binary image whale optimization algorithm ) OR ( binary days required optimization algorithm ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( binary image whale optimization algorithm ) OR ( binary days required optimization algorithm ))".
• Adding a wildcard symbol may retrieve word variants: (( binary image whale optimization algorithm ) OR ( binary days required optimization algorithm ))*.