Perhaps you should try some spelling variations:
"task scheduling optimization algorithm" » "task cooling optimization algorithm" (Expand Search), "tasa scheduling optimization algorithm" (Expand Search)
"ant swarm optimisation algorithm" » "ant towards optimisation algorithm" (Expand Search), "ant stage optimization algorithm" (Expand Search), "ant wolf optimisation algorithm" (Expand Search), "a swarm optimisation algorithm" (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"task scheduling optimization algorithm\") OR (\"ant swarm optimisation algorithm\"))~".
• Removing quotes may allow a broader search: (( task scheduling optimization algorithm ) OR ( ant swarm optimisation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("task scheduling optimization algorithm") OR ("ant swarm optimisation algorithm"))*.