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 tree algorithms" » "element three algorithms" (Expand Search), "element art algorithms" (Expand Search), "element two algorithms" (Expand Search), "element ree algorithms" (Expand Search), "element te algorithms" (Expand Search), "element ore algorithms" (Expand Search)
"element cnn algorithm" » "element mean algorithm" (Expand Search), "element _ algorithm" (Expand Search), "element ii 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 tree algorithms") OR ("element cnn algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"fluent modeling algorithm\") OR (((\"element tree algorithms\") OR (\"element cnn algorithm\"))))".
• Removing quotes may allow a broader search: (( fluent modeling algorithm ) OR ((( element tree algorithms ) OR ( element cnn algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("fluent modeling algorithm") OR ((("element tree algorithms") OR ("element cnn algorithm"))))*.