Perhaps you should try some spelling variations:
"elements learning algorithm" » "elements learning algorithms" (Expand Search), "students learning algorithm" (Expand Search), "elements during algorithm" (Expand Search)
"element data algorithm" » "element data algorithms" (Expand Search), "element update algorithm" (Expand Search), "element each algorithm" (Expand Search), "relevant data algorithm" (Expand Search), "movement data algorithm" (Expand Search), "present data algorithm" (Expand Search)
"elemental xrd algorithm" » "elemental iron algorithm" (Expand Search), "elemental rf algorithm" (Expand Search), "elemental rl algorithm" (Expand Search), "elemental wsd 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 ("element data algorithm"))) OR ("elements learning algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"elemental xrd algorithm\") OR (\"element data algorithm\"))) OR (\"elements learning algorithm\"))".
• Removing quotes may allow a broader search: (((( elemental xrd algorithm ) OR ( element data algorithm ))) OR ( elements learning algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("elemental xrd algorithm") OR ("element data algorithm"))) OR ("elements learning algorithm"))*.