Perhaps you should try some spelling variations:
"binary data based optimization algorithm" » "binary rat based optimization algorithm" (Expand Search)
"binary task structure optimization algorithm" » "binary task structural 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 task structure optimization algorithm") OR ("binary data based optimization algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"binary task structure optimization algorithm\") OR (\"binary data based optimization algorithm\"))".
• Removing quotes may allow a broader search: (( binary task structure optimization algorithm ) OR ( binary data based optimization algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("binary task structure optimization algorithm") OR ("binary data based optimization algorithm"))*.