Perhaps you should try some spelling variations:
"element software algorithm" » "element swarm algorithm" (Expand Search)
"element mapping algorithm" » "element sampling algorithm" (Expand Search), "element matching algorithm" (Expand Search), "element mining algorithm" (Expand Search), "elemental mapping algorithm" (Expand Search), "element modeling algorithm" (Expand Search)
"latent mean algorithm" » "latent means algorithm" (Expand Search), "latent new algorithm" (Expand Search), "latent em algorithm" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("latent mean algorithm") OR ("element software algorithm"))) OR ("element mapping algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"latent mean algorithm\") OR (\"element software algorithm\"))) OR (\"element mapping algorithm\"))".
• Removing quotes may allow a broader search: (((( latent mean algorithm ) OR ( element software algorithm ))) OR ( element mapping algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("latent mean algorithm") OR ("element software algorithm"))) OR ("element mapping algorithm"))*.