Perhaps you should try some spelling variations:
"element sampling algorithm" » "element scheduling algorithm" (Expand Search)
"elements rl algorithms" » "elements _ algorithms" (Expand Search), "elements rd algorithm" (Expand Search)
"elements pso algorithm" » "elements _ algorithm" (Expand Search), "elementi per 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 pso algorithm\") OR (\"elements rl algorithms\"))) OR (\"element sampling algorithm\"))~".
• Removing quotes may allow a broader search: (((( elements pso algorithm ) OR ( elements rl algorithms ))) OR ( element sampling algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (((("elements pso algorithm") OR ("elements rl algorithms"))) OR ("element sampling algorithm"))*.