Perhaps you should try some spelling variations:
"element learning algorithm" » "element learning algorithms" (Expand Search), "excellent learning algorithm" (Expand Search), "student learning algorithm" (Expand Search), "agent learning algorithm" (Expand Search)
"fragment based algorithm" » "agent based algorithm" (Expand Search)
"relevant data algorithm" » "relevant data algorithms" (Expand Search), "relevant update algorithm" (Expand Search), "relevant atlas 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: (("element learning algorithm") OR ((("fragment based algorithm") OR ("relevant data algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element learning algorithm\") OR (((\"fragment based algorithm\") OR (\"relevant data algorithm\"))))".
• Removing quotes may allow a broader search: (( element learning algorithm ) OR ((( fragment based algorithm ) OR ( relevant data algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element learning algorithm") OR ((("fragment based algorithm") OR ("relevant data algorithm"))))*.