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)
"client learner algorithm" » "client learning algorithms" (Expand Search), "client search algorithm" (Expand Search), "client means algorithm" (Expand Search), "client server algorithm" (Expand Search)
"urgent needs algorithm" » "urgent means algorithm" (Expand Search), "urgent new algorithm" (Expand Search), "urgent leiden algorithm" (Expand Search), "urgent need algorithm" (Expand Search), "unmet needs algorithm" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("urgent needs algorithm") OR ("client learner algorithm"))) OR ("elements learning algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"urgent needs algorithm\") OR (\"client learner algorithm\"))) OR (\"elements learning algorithm\"))".
• Removing quotes may allow a broader search: (((( urgent needs algorithm ) OR ( client learner algorithm ))) OR ( elements learning algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("urgent needs algorithm") OR ("client learner algorithm"))) OR ("elements learning algorithm"))*.