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