Perhaps you should try some spelling variations:
"element sampling algorithm" » "element scheduling algorithm" (Expand Search), "elements sampling algorithm" (Expand Search)
"element mesh algorithm" » "element deer algorithm" (Expand Search), "element search algorithm" (Expand Search), "elements mesh algorithm" (Expand Search)
"elemental rf algorithm" » "elemental rd algorithm" (Expand Search), "elemental _ algorithms" (Expand Search), "elementary rf algorithm" (Expand Search), "elements rf algorithm" (Expand Search), "elementsal rf algorithm" (Expand Search)

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("elemental rf algorithm") OR ("element mesh algorithm"))) OR ("element sampling algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"elemental rf algorithm\") OR (\"element mesh algorithm\"))) OR (\"element sampling algorithm\"))".
• Removing quotes may allow a broader search: (((( elemental rf algorithm ) OR ( element mesh algorithm ))) OR ( element sampling algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("elemental rf algorithm") OR ("element mesh algorithm"))) OR ("element sampling algorithm"))*.