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