Perhaps you should try some spelling variations:
"current sampling algorithm" » "current making algorithm" (Expand Search), "current modeling algorithm" (Expand Search), "current mining algorithm" (Expand Search), "current smoking algorithm" (Expand Search), "client sampling algorithm" (Expand Search)
"neural coding algorithm" » "neural cosine algorithm" (Expand Search), "neural modeling algorithm" (Expand Search), "neural finding algorithm" (Expand Search)
"element td3 algorithm" » "element cc3d algorithm" (Expand Search), "element _ algorithm" (Expand Search), "element ii algorithm" (Expand Search), "element te algorithm" (Expand Search), "element study 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 td3 algorithm") OR ((("current sampling algorithm") OR ("neural coding algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element td3 algorithm\") OR (((\"current sampling algorithm\") OR (\"neural coding algorithm\"))))".
• Removing quotes may allow a broader search: (( element td3 algorithm ) OR ((( current sampling algorithm ) OR ( neural coding algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element td3 algorithm") OR ((("current sampling algorithm") OR ("neural coding algorithm"))))*.