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 rl algorithms" » "element ml algorithms" (Expand Search), "element rl algorithm" (Expand Search), "element art algorithms" (Expand Search), "element ore algorithms" (Expand Search), "element ree algorithms" (Expand Search), "element _ algorithms" (Expand Search)
"element based algorithm" » "engagement based 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 matching algorithm") OR ((("element rl algorithms") OR ("element based algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element matching algorithm\") OR (((\"element rl algorithms\") OR (\"element based algorithm\"))))".
• Removing quotes may allow a broader search: (( element matching algorithm ) OR ((( element rl algorithms ) OR ( element based algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element matching algorithm") OR ((("element rl algorithms") OR ("element based algorithm"))))*.