Perhaps you should try some spelling variations:
"binary mask based optimization algorithm" » "binary mask whale optimization algorithm" (Expand Search), "binary image based optimization algorithm" (Expand Search), "binary task based optimization algorithm" (Expand Search), "binary risk based optimization algorithm" (Expand Search)
"binary pac bayesian optimization algorithm" » "binary a bayesian optimization algorithm" (Expand Search), "binary ph bayesian optimization algorithm" (Expand Search), "binary task bayesian optimization algorithm" (Expand Search), "binary pairs bayesian optimization algorithm" (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("binary mask based optimization algorithm") OR ("binary pac bayesian optimization algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"binary mask based optimization algorithm\") OR (\"binary pac bayesian optimization algorithm\"))".
• Removing quotes may allow a broader search: (( binary mask based optimization algorithm ) OR ( binary pac bayesian optimization algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("binary mask based optimization algorithm") OR ("binary pac bayesian optimization algorithm"))*.