Perhaps you should try some spelling variations:
"elements mapping algorithm" » "elements making algorithm" (Expand Search), "elements mining algorithm" (Expand Search), "elements learning algorithm" (Expand Search), "elemental mapping algorithm" (Expand Search), "elements during algorithm" (Expand Search)
"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)
"client means algorithm" » "client search algorithm" (Expand Search), "client needs algorithm" (Expand Search)

Try widening your search to All Fields.

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