Perhaps you should try some spelling variations:
"element mapping algorithm" » "element making algorithm" (Expand Search), "element mining algorithm" (Expand Search), "element learning algorithm" (Expand Search), "elemental mapping algorithm" (Expand Search), "element modeling algorithm" (Expand Search), "argument mapping algorithm" (Expand Search)
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean algorithm" (Expand Search)
"element group algorithms" » "element four algorithms" (Expand Search), "element graph algorithms" (Expand Search), "element frog algorithms" (Expand Search), "recent group algorithms" (Expand Search), "supplement group 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 method algorithm") OR ("element group algorithms"))) OR ("element mapping algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element method algorithm\") OR (\"element group algorithms\"))) OR (\"element mapping algorithm\"))".
• Removing quotes may allow a broader search: (((( element method algorithm ) OR ( element group algorithms ))) OR ( element mapping algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element method algorithm") OR ("element group algorithms"))) OR ("element mapping algorithm"))*.