Perhaps you should try some spelling variations:
"client sampling algorithm" » "client making algorithm" (Expand Search), "client modeling algorithm" (Expand Search), "client mining algorithm" (Expand Search)
"element forest algorithm" » "element ore algorithm" (Expand Search)
"element novel algorithm" » "element model algorithm" (Expand Search), "element ore algorithm" (Expand Search), "elements over algorithm" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("element novel algorithm") OR ("element forest algorithm"))) OR ("client sampling algorithm"))~.
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