Perhaps you should try some spelling variations:
"client sampling algorithm" » "client scheduling algorithm" (Expand Search)
"elements ree algorithm" » "elements deer algorithm" (Expand Search), "elements rd algorithm" (Expand Search), "elements _ algorithm" (Expand Search), "elementi per algorithm" (Expand Search)
"elements de algorithms" » "elements _ algorithms" (Expand Search), "elements deer algorithm" (Expand Search), "elements rd algorithm" (Expand Search), "elementi per algorithms" (Expand Search)

Try widening your search to All Fields.

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