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)
"elements pso algorithm" » "elements _ algorithm" (Expand Search), "elementi per algorithm" (Expand Search)
"neural colony algorithm" » "neural colon algorithm" (Expand Search)

Try widening your search to All Fields.

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