Perhaps you should try some spelling variations:
"element sampling algorithm" » "element mining algorithm" (Expand Search), "sediment sampling algorithm" (Expand Search), "element mapping algorithm" (Expand Search), "client sampling algorithm" (Expand Search)
"element swarm algorithm" » "element search algorithm" (Expand Search), "element software algorithm" (Expand Search)
"client means algorithm" » "client search algorithm" (Expand Search), "client needs 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 swarm algorithm") OR ("element sampling algorithm"))) OR ("client means algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element swarm algorithm\") OR (\"element sampling algorithm\"))) OR (\"client means algorithm\"))".
• Removing quotes may allow a broader search: (((( element swarm algorithm ) OR ( element sampling algorithm ))) OR ( client means algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element swarm algorithm") OR ("element sampling algorithm"))) OR ("client means algorithm"))*.