Perhaps you should try some spelling variations:
"element tracking algorithm" » "element learning algorithm" (Expand Search), "element processing algorithm" (Expand Search), "movement tracking algorithm" (Expand Search), "sleep tracking algorithm" (Expand Search), "element mapping algorithm" (Expand Search)
"client mining algorithm" » "client learning algorithm" (Expand Search), "client means algorithm" (Expand Search)
"client needs algorithm" » "client means algorithm" (Expand Search), "client new algorithm" (Expand Search), "client leiden algorithm" (Expand Search), "china needs algorithm" (Expand Search), "urgent needs 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 tracking algorithm") OR ((("client mining algorithm") OR ("client needs algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element tracking algorithm\") OR (((\"client mining algorithm\") OR (\"client needs algorithm\"))))".
• Removing quotes may allow a broader search: (( element tracking algorithm ) OR ((( client mining algorithm ) OR ( client needs algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element tracking algorithm") OR ((("client mining algorithm") OR ("client needs algorithm"))))*.