Perhaps you should try some spelling variations:
"element sampling algorithm" » "element scheduling algorithm" (Expand Search), "elements sampling algorithm" (Expand Search)
"relevant data algorithms" » "relevant jaya algorithm" (Expand Search)
"element ore algorithm" » "element rd algorithm" (Expand Search), "element deer algorithm" (Expand Search), "element cosine algorithm" (Expand Search), "elements ore 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 ore algorithm") OR ("relevant data algorithms"))) OR ("element sampling algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element ore algorithm\") OR (\"relevant data algorithms\"))) OR (\"element sampling algorithm\"))".
• Removing quotes may allow a broader search: (((( element ore algorithm ) OR ( relevant data algorithms ))) OR ( element sampling algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element ore algorithm") OR ("relevant data algorithms"))) OR ("element sampling algorithm"))*.