Perhaps you should try some spelling variations:
"binary based complex optimization algorithm" » "binary based whale optimization algorithm" (Expand Search), "binary based chimp optimization algorithm" (Expand Search)
"linac based wolf optimization algorithm" » "linac based whale optimization algorithm" (Expand Search), "linac based policy optimization algorithm" (Expand Search), "linac based swarm 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 based complex optimization algorithm") OR ("linac based wolf optimization algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"binary based complex optimization algorithm\") OR (\"linac based wolf optimization algorithm\"))*".
• Removing quotes may allow a broader search: (( binary based complex optimization algorithm ) OR ( linac based wolf optimization algorithm ))*.