Perhaps you should try some spelling variations:
"_ mathematical optimization algorithm" » "_ mathematics optimization algorithm" (Expand Search), "_ mathematica optimization algorithm" (Expand Search), "y matematicas optimization algorithm" (Expand Search), "_ mathematical optimization algoritmo" (Expand Search)
"task scheduling optimization algorithm" » "task cooling optimization algorithm" (Expand Search), "tasa scheduling optimization algorithm" (Expand Search), "task scheduling optimization algoritmo" (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 (\"_ mathematical optimization algorithm\"))~".
• Removing quotes may allow a broader search: (( task scheduling optimization algorithm ) OR ( _ mathematical optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("task scheduling optimization algorithm") OR ("_ mathematical optimization algorithm"))*.