Perhaps you should try some spelling variations:
"level coding algorithm" » "level cosine algorithm" (Expand Search), "level modeling algorithm" (Expand Search), "level finding algorithm" (Expand Search), "level according algorithm" (Expand Search), "level using algorithm" (Expand Search)
"elements each algorithm" » "elements search algorithm" (Expand Search), "elements means algorithm" (Expand Search), "elements crcy algorithm" (Expand Search), "elements uce algorithm" (Expand Search), "experiments each algorithm" (Expand Search)
"elements ppo algorithm" » "elements pso algorithm" (Expand Search), "elements two algorithms" (Expand Search), "elements _ algorithm" (Expand Search), "elements ppm algorithm" (Expand Search), "elements upon 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: "((((\"elements ppo algorithm\") OR (\"elements each algorithm\"))) OR (\"level coding algorithm\"))~".
• Removing quotes may allow a broader search: (((( elements ppo algorithm ) OR ( elements each algorithm ))) OR ( level coding algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (((("elements ppo algorithm") OR ("elements each algorithm"))) OR ("level coding algorithm"))*.