Perhaps you should try some spelling variations:
"fluent modeling algorithm" » "fluent making algorithm" (Expand Search), "element modeling algorithm" (Expand Search), "forest modeling algorithm" (Expand Search), "plant modeling algorithm" (Expand Search)
"element update algorithm" » "element pass algorithm" (Expand Search), "element data algorithms" (Expand Search), "element ipca algorithm" (Expand Search), "element data algorithm" (Expand Search)
"element based algorithm" » "engagement based algorithm" (Expand Search)

Try widening your search to All Fields.

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