Perhaps you should try some spelling variations:
"element mining algorithm" » "element learning algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mapping algorithm" (Expand Search), "element bonding algorithm" (Expand Search), "element modeling algorithm" (Expand Search)
"element group algorithm" » "element growth algorithm" (Expand Search), "elements groups algorithm" (Expand Search), "recent group algorithm" (Expand Search), "supplement group algorithm" (Expand Search)
"elemental iron algorithm" » "elemental pso algorithm" (Expand Search), "elemental ii algorithm" (Expand Search), "elemental cnn algorithm" (Expand Search), "elements iron algorithm" (Expand Search)

Try widening your search to All Fields.

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