Perhaps you should try some spelling variations:
"data learning algorithm" » "data learning algorithms" (Expand Search), "meta learning algorithm" (Expand Search), "deep learning algorithm" (Expand Search), "a learning algorithm" (Expand Search)
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean algorithm" (Expand Search)
"element cnn algorithm" » "element mean algorithm" (Expand Search), "element _ algorithm" (Expand Search), "element ii 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: (("data learning algorithm") OR ((("element method algorithm") OR ("element cnn algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"data learning algorithm\") OR (((\"element method algorithm\") OR (\"element cnn algorithm\"))))".
• Removing quotes may allow a broader search: (( data learning algorithm ) OR ((( element method algorithm ) OR ( element cnn algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("data learning algorithm") OR ((("element method algorithm") OR ("element cnn algorithm"))))*.