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