Perhaps you should try some spelling variations:
"element matching algorithm" » "element mining algorithm" (Expand Search), "element sampling algorithm" (Expand Search), "element mapping algorithm" (Expand Search), "employment matching algorithm" (Expand Search), "element modeling algorithm" (Expand Search)
"sleep tracking algorithm" » "sleep learning algorithm" (Expand Search), "sleep processing algorithm" (Expand Search)
"element ree algorithm" » "element tree algorithms" (Expand Search), "element new algorithm" (Expand Search), "element em algorithm" (Expand Search), "elements ree algorithm" (Expand Search), "element te algorithm" (Expand Search), "element mesh 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: (("element ree algorithm") OR ((("element matching algorithm") OR ("sleep tracking algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element ree algorithm\") OR (((\"element matching algorithm\") OR (\"sleep tracking algorithm\"))))".
• Removing quotes may allow a broader search: (( element ree algorithm ) OR ((( element matching algorithm ) OR ( sleep tracking algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element ree algorithm") OR ((("element matching algorithm") OR ("sleep tracking algorithm"))))*.