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