Perhaps you should try some spelling variations:
phase optimization » whale optimization (Expand Search), based optimization (Expand Search), path optimization (Expand Search)
led optimization » lead optimization (Expand Search), yet optimization (Expand Search), based optimization (Expand Search)
binary mask » binary image (Expand Search)
binary per » binary pairs (Expand Search)
per phase » peak phase (Expand Search)
mask led » risk led (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 per phase optimization algorithm ) OR ( binary mask led optimization algorithm ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( binary per phase optimization algorithm ) OR ( binary mask led optimization algorithm ))".
• Adding a wildcard symbol may retrieve word variants: (( binary per phase optimization algorithm ) OR ( binary mask led optimization algorithm ))*.