Perhaps you should try some spelling variations:
"implement modeling algorithm" » "implement scheduling algorithm" (Expand Search), "implemented modeling algorithm" (Expand Search), "implementing modeling algorithm" (Expand Search)
"element data algorithm" » "element jaya algorithm" (Expand Search), "element deer algorithm" (Expand Search), "elements data algorithm" (Expand Search)
"presence data algorithm" » "presence jaya algorithm" (Expand Search), "presence deer algorithm" (Expand Search), "presented data algorithm" (Expand Search), "present data algorithm" (Expand Search), "presents 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: (("implement modeling algorithm") OR ((("element data algorithm") OR ("presence data algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"implement modeling algorithm\") OR (((\"element data algorithm\") OR (\"presence data algorithm\"))))".
• Removing quotes may allow a broader search: (( implement modeling algorithm ) OR ((( element data algorithm ) OR ( presence data algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("implement modeling algorithm") OR ((("element data algorithm") OR ("presence data algorithm"))))*.