Perhaps you should try some spelling variations:
"end modeling algorithm" » "end making algorithm" (Expand Search), "3d modeling algorithm" (Expand Search), "ann modeling algorithm" (Expand Search), "cfd modeling algorithm" (Expand Search)
"cell clustering algorithm" » "cell clusters algorithm" (Expand Search), "means clustering algorithm" (Expand Search)
"element data algorithm" » "element data algorithms" (Expand Search), "element update algorithm" (Expand Search), "element atlas algorithm" (Expand Search), "settlement data algorithm" (Expand Search), "relevant data algorithm" (Expand Search), "movement data algorithm" (Expand Search)

Try widening your search to All Fields.

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