Perhaps you should try some spelling variations:
"element sampling algorithm" » "element making algorithm" (Expand Search), "element modeling algorithm" (Expand Search), "element mining algorithm" (Expand Search), "sediment sampling algorithm" (Expand Search), "client sampling algorithm" (Expand Search), "element mapping algorithm" (Expand Search)
"presence data algorithms" » "presence art algorithms" (Expand Search), "presence all algorithms" (Expand Search), "presence both algorithms" (Expand Search), "presence update algorithms" (Expand Search), "presence atlas algorithms" (Expand Search), "presence each algorithms" (Expand Search), "prevalence data algorithms" (Expand Search)
"element data algorithm" » "element update algorithm" (Expand Search), "element atlas algorithm" (Expand Search), "element each algorithm" (Expand Search), "settlement data algorithm" (Expand Search), "relevant data algorithm" (Expand Search), "movement data algorithm" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("element data algorithm") OR ("element sampling algorithm"))) OR ("presence data algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element data algorithm\") OR (\"element sampling algorithm\"))) OR (\"presence data algorithms\"))".
• Removing quotes may allow a broader search: (((( element data algorithm ) OR ( element sampling algorithm ))) OR ( presence data algorithms )).
• Adding a wildcard symbol may retrieve word variants: (((("element data algorithm") OR ("element sampling algorithm"))) OR ("presence data algorithms"))*.