Perhaps you should try some spelling variations:
"agent learning algorithm" » "agent learning algorithms" (Expand Search), "student learning algorithm" (Expand Search)
"elements tree algorithms" » "elements three algorithms" (Expand Search), "elements art algorithms" (Expand Search), "elements two algorithms" (Expand Search), "elements ree algorithms" (Expand Search), "element ree algorithms" (Expand Search), "elements res algorithms" (Expand Search)
"element based algorithm" » "engagement based 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: (((("element based algorithm") OR ("elements tree algorithms"))) OR ("agent learning algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element based algorithm\") OR (\"elements tree algorithms\"))) OR (\"agent learning algorithm\"))".
• Removing quotes may allow a broader search: (((( element based algorithm ) OR ( elements tree algorithms ))) OR ( agent learning algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element based algorithm") OR ("elements tree algorithms"))) OR ("agent learning algorithm"))*.