Perhaps you should try some spelling variations:
sampling algorithm » mining algorithm (Expand Search)
mapping algorithm » matching algorithm (Expand Search), mining algorithm (Expand Search), learning algorithm (Expand Search)
element sampling » sediment sampling (Expand Search), client sampling (Expand Search), element modeling (Expand Search)
element mapping » elemental mapping (Expand Search), element modeling (Expand Search)

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

• Removing quotes may allow a broader search: (( element sampling algorithm ) OR ( element mapping algorithm )).