Perhaps you should try some spelling variations:
"elements sampling algorithm" » "elements making algorithm" (Expand Search), "elements modeling algorithm" (Expand Search), "elements mining algorithm" (Expand Search), "client sampling algorithm" (Expand Search), "sediment sampling algorithm" (Expand Search), "element mapping algorithm" (Expand Search), "elements samplin_ algorithm" (Expand Search), "elements samplinb algorithm" (Expand Search), "elements samplingnb algorithm" (Expand Search)
"element em algorithm" » "element new algorithm" (Expand Search), "element _ algorithm" (Expand Search), "element ii algorithm" (Expand Search), "element ree algorithm" (Expand Search), "element te algorithm" (Expand Search)
"element g algorithm" » "element _ algorithm" (Expand Search), "element b algorithm" (Expand Search), "element gnb algorithm" (Expand Search), "elements _ 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 em algorithm") OR ("element g algorithm"))) OR ("elements sampling algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element em algorithm\") OR (\"element g algorithm\"))) OR (\"elements sampling algorithm\"))".
• Removing quotes may allow a broader search: (((( element em algorithm ) OR ( element g algorithm ))) OR ( elements sampling algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element em algorithm") OR ("element g algorithm"))) OR ("elements sampling algorithm"))*.