Perhaps you should try some spelling variations:
"fluent modeling algorithm" » "fluent scheduling algorithm" (Expand Search), "agent modeling algorithm" (Expand Search), "event modeling algorithm" (Expand Search)
"prevalence data algorithm" » "prevalence years algorithm" (Expand Search), "prevalence jaya algorithm" (Expand Search), "prevalence deer algorithm" (Expand Search)
"element mesh algorithm" » "element deer algorithm" (Expand Search), "element search algorithm" (Expand Search), "elements mesh algorithm" (Expand Search)

Try widening your search to All Fields.

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