Perhaps you should try some spelling variations:
"element learner algorithm" » "element learning algorithm" (Expand Search), "element learning algorithms" (Expand Search), "element search algorithm" (Expand Search)
"plant processing algorithm" » "post processing algorithm" (Expand Search), "image processing algorithm" (Expand Search), "data processing algorithm" (Expand Search)
"element erf algorithm" » "element rf algorithm" (Expand Search), "element em algorithm" (Expand Search), "element rl algorithm" (Expand Search), "element ore algorithm" (Expand Search), "element mesh 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: (((("element erf algorithm") OR ("element learner algorithm"))) OR ("plant processing algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element erf algorithm\") OR (\"element learner algorithm\"))) OR (\"plant processing algorithm\"))".
• Removing quotes may allow a broader search: (((( element erf algorithm ) OR ( element learner algorithm ))) OR ( plant processing algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element erf algorithm") OR ("element learner algorithm"))) OR ("plant processing algorithm"))*.