Perhaps you should try some spelling variations:
"age modeling algorithm" » "age making algorithm" (Expand Search), "case modeling algorithm" (Expand Search), "a modeling algorithm" (Expand Search), "afm modeling algorithm" (Expand Search)
"element method algorithms" » "element two algorithms" (Expand Search), "element both algorithms" (Expand Search), "element other algorithms" (Expand Search), "elements method algorithms" (Expand Search)
"present data algorithm" » "present data algorithms" (Expand Search), "present update algorithm" (Expand Search), "present atlas algorithm" (Expand Search), "presence data algorithm" (Expand Search), "present day algorithm" (Expand Search), "recent data algorithm" (Expand Search)

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