Perhaps you should try some spelling variations:
"panel modeling algorithm" » "panel scheduling algorithm" (Expand Search), "based modeling algorithm" (Expand Search), "spatial modeling algorithm" (Expand Search)
"element data algorithm" » "element jaya algorithm" (Expand Search), "element deer algorithm" (Expand Search), "elements data algorithm" (Expand Search)
"data fitting algorithm" » "data mining algorithm" (Expand Search), "data hiding algorithm" (Expand Search)

Try widening your search to All Fields.

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