Perhaps you should try some spelling variations:
"element matching algorithm" » "element making algorithm" (Expand Search), "element modeling algorithm" (Expand Search), "element mining algorithm" (Expand Search), "element mapping algorithm" (Expand Search), "employment matching algorithm" (Expand Search)
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean algorithm" (Expand Search)
"present model algorithm" » "present novel algorithm" (Expand Search), "present modbo algorithm" (Expand Search), "present modeling algorithm" (Expand Search), "element model algorithm" (Expand Search), "rodent model algorithm" (Expand Search)

Try widening your search to All Fields.

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