Perhaps you should try some spelling variations:
"recent learning algorithm" » "recent learning algorithms" (Expand Search), "student learning algorithm" (Expand Search)
"elements mining algorithm" » "elements cosine algorithm" (Expand Search)
"neural coding algorithm" » "neural cosine algorithm" (Expand Search), "neural colony algorithm" (Expand Search), "neural scheduling 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: (("elements mining algorithm") OR ((("recent learning algorithm") OR ("neural coding algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"elements mining algorithm\") OR (((\"recent learning algorithm\") OR (\"neural coding algorithm\"))))".
• Removing quotes may allow a broader search: (( elements mining algorithm ) OR ((( recent learning algorithm ) OR ( neural coding algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("elements mining algorithm") OR ((("recent learning algorithm") OR ("neural coding algorithm"))))*.