Perhaps you should try some spelling variations:
"binary gap whale optimization algorithm" » "binary gap swarm optimization algorithm" (Expand Search), "binary rat whale optimization algorithm" (Expand Search)
"binary mass based optimization algorithm" » "binary images based optimization algorithm" (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 mass based optimization algorithm") OR ("binary gap whale optimization algorithm"))~.
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• Removing quotes may allow a broader search: (( binary mass based optimization algorithm ) OR ( binary gap whale optimization algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("binary mass based optimization algorithm") OR ("binary gap whale optimization algorithm"))*.