Perhaps you should try some spelling variations:
"elements sampling algorithm" » "elements scheduling algorithm" (Expand Search)
"elemental xrd algorithm" » "elemental rd algorithm" (Expand Search), "elementary xrd algorithm" (Expand Search), "element xrd algorithm" (Expand Search)
"elemental rf algorithm" » "elemental rd algorithm" (Expand Search), "elemental _ algorithms" (Expand Search), "elementary rf algorithm" (Expand Search), "element 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 xrd algorithm") OR ("elemental rf algorithm"))) OR ("elements sampling algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"elemental xrd algorithm\") OR (\"elemental rf algorithm\"))) OR (\"elements sampling algorithm\"))".
• Removing quotes may allow a broader search: (((( elemental xrd algorithm ) OR ( elemental rf algorithm ))) OR ( elements sampling algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("elemental xrd algorithm") OR ("elemental rf algorithm"))) OR ("elements sampling algorithm"))*.