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 matchin_ algorithm" (Expand Search), "element matchinb algorithm" (Expand Search), "element matchingnb algorithm" (Expand Search)
"event study algorithm" » "event wsindy algorithm" (Expand Search), "event td3 algorithm" (Expand Search), "event seu algorithm" (Expand Search), "recent study algorithm" (Expand Search), "present study algorithm" (Expand Search)
"element g algorithm" » "element _ algorithm" (Expand Search), "element b algorithm" (Expand Search), "element gnb algorithm" (Expand Search), "elements _ algorithm" (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

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