Perhaps you should try some spelling variations:
"sleep tracking algorithm" » "sleep learning algorithm" (Expand Search), "sleep processing algorithm" (Expand Search)
"elements cscap algorithm" » "elements cc3d algorithm" (Expand Search), "elements ipca algorithm" (Expand Search), "elements cosine algorithm" (Expand Search), "elements crcy algorithm" (Expand Search)
"elements new algorithm" » "elements novel algorithm" (Expand Search), "elements _ algorithm" (Expand Search), "elements ree algorithm" (Expand Search), "elements fe algorithm" (Expand Search), "elements res 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: (((("elements new algorithm") OR ("elements cscap algorithm"))) OR ("sleep tracking algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"elements new algorithm\") OR (\"elements cscap algorithm\"))) OR (\"sleep tracking algorithm\"))".
• Removing quotes may allow a broader search: (((( elements new algorithm ) OR ( elements cscap algorithm ))) OR ( sleep tracking algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("elements new algorithm") OR ("elements cscap algorithm"))) OR ("sleep tracking algorithm"))*.