Perhaps you should try some spelling variations:
"client sampling algorithm" » "client mining algorithm" (Expand Search), "sediment sampling algorithm" (Expand Search)
"present model algorithm" » "present novel algorithm" (Expand Search), "present forest algorithm" (Expand Search), "rodent model algorithm" (Expand Search)
"element model algorithm" » "element novel algorithm" (Expand Search), "element forest 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: "((((\"present model algorithm\") OR (\"element model algorithm\"))) OR (\"client sampling algorithm\"))~".
• Removing quotes may allow a broader search: (((( present model algorithm ) OR ( element model algorithm ))) OR ( client sampling algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (((("present model algorithm") OR ("element model algorithm"))) OR ("client sampling algorithm"))*.