Perhaps you should try some spelling variations:
"elements method algorithm" » "elements network algorithm" (Expand Search), "elements means algorithm" (Expand Search), "elements mean algorithm" (Expand Search), "element method algorithm" (Expand Search)
"data using algorithm" » "data using algorithms" (Expand Search), "data routing algorithm" (Expand Search), "data fusion algorithm" (Expand Search)
"presence data algorithm" » "presence data algorithms" (Expand Search), "presence update algorithm" (Expand Search), "presence atlas algorithm" (Expand Search), "prevalence data algorithm" (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"elements method algorithm\") OR (\"presence data algorithm\"))) OR (\"data using algorithm\"))~".
• Removing quotes may allow a broader search: (((( elements method algorithm ) OR ( presence data algorithm ))) OR ( data using algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (((("elements method algorithm") OR ("presence data algorithm"))) OR ("data using algorithm"))*.