Perhaps you should try some spelling variations:
"forest modeling algorithm" » "forest making algorithm" (Expand Search), "forest model algorithm" (Expand Search), "forest models algorithm" (Expand Search)
"element control algorithm" » "element controls algorithm" (Expand Search), "element content algorithm" (Expand Search), "dependent control 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: (((("element control algorithm") OR ("element data algorithm"))) OR ("forest modeling algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element control algorithm\") OR (\"element data algorithm\"))) OR (\"forest modeling algorithm\"))".
• Removing quotes may allow a broader search: (((( element control algorithm ) OR ( element data algorithm ))) OR ( forest modeling algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element control algorithm") OR ("element data algorithm"))) OR ("forest modeling algorithm"))*.