Perhaps you should try some spelling variations:
"element swarm algorithm" » "element search algorithm" (Expand Search), "element software algorithm" (Expand Search)
"element mesh algorithm" » "element best algorithm" (Expand Search), "element mean algorithm" (Expand Search), "element means algorithm" (Expand Search), "element method algorithm" (Expand Search)
"elements ree algorithms" » "elements tree algorithms" (Expand Search), "elements three algorithms" (Expand Search), "elements rl algorithms" (Expand Search), "elements _ algorithms" (Expand Search), "elements present algorithms" (Expand Search), "elements related algorithms" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("element swarm algorithm") OR ((("element mesh algorithm") OR ("elements ree algorithms"))))~.
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• Removing quotes may allow a broader search: (( element swarm algorithm ) OR ((( element mesh algorithm ) OR ( elements ree algorithms )))).
• Adding a wildcard symbol may retrieve word variants: (("element swarm algorithm") OR ((("element mesh algorithm") OR ("elements ree algorithms"))))*.