Perhaps you should try some spelling variations:
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean algorithm" (Expand Search)
"deep clustering algorithm" » "cell clustering algorithm" (Expand Search), "re clustering algorithm" (Expand Search), "gene clustering algorithm" (Expand Search)
"based model algorithm" » "based novel algorithm" (Expand Search), "based modbo algorithm" (Expand Search), "based modeling algorithm" (Expand Search)

Try widening your search to All Fields.

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