Perhaps you should try some spelling variations:
"implement learner algorithm" » "implement learning algorithms" (Expand Search), "implement search algorithm" (Expand Search), "implement deer algorithm" (Expand Search), "implemented learner algorithm" (Expand Search), "implementing learner algorithm" (Expand Search)
"level using algorithm" » "level cosine algorithm" (Expand Search), "level fusion algorithm" (Expand Search)
"element update algorithm" » "elements update algorithm" (Expand Search), "element updated 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: (((("implement learner algorithm") OR ("element update algorithm"))) OR ("level using algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"implement learner algorithm\") OR (\"element update algorithm\"))) OR (\"level using algorithm\"))".
• Removing quotes may allow a broader search: (((( implement learner algorithm ) OR ( element update algorithm ))) OR ( level using algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("implement learner algorithm") OR ("element update algorithm"))) OR ("level using algorithm"))*.