Perhaps you should try some spelling variations:
sampling algorithm » mining algorithm (Expand Search)
fluent processing » plant processing (Expand Search), light processing (Expand Search), text processing (Expand Search)
element sampling » sediment sampling (Expand Search), element mapping (Expand Search), client sampling (Expand Search)
query processing » pre processing (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 sampling algorithm\\") OR (\\"((fluent processing) OR (query processing)) algorithm\\"))\"".
• Removing quotes may allow a broader search: (( element sampling algorithm ) OR ( ((fluent processing) OR (query processing)) algorithm )).