Perhaps you should try some spelling variations:
"elements sampling algorithm" » "elements mining algorithm" (Expand Search), "sediment sampling algorithm" (Expand Search), "element mapping algorithm" (Expand Search), "client sampling algorithm" (Expand Search)
"present model algorithm" » "present novel algorithm" (Expand Search), "present forest algorithm" (Expand Search), "element model algorithm" (Expand Search), "rodent model 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)

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: "((((\"element ree algorithm\") OR (\"present model algorithm\"))) OR (\"elements sampling algorithm\"))~".
• Removing quotes may allow a broader search: (((( element ree algorithm ) OR ( present model algorithm ))) OR ( elements sampling algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (((("element ree algorithm") OR ("present model algorithm"))) OR ("elements sampling algorithm"))*.