Perhaps you should try some spelling variations:
"sediment sampling algorithm" » "sediment mining algorithm" (Expand Search), "sediment samples algorithm" (Expand Search), "sediment sample algorithm" (Expand Search)
"element ree algorithm" » "element tree algorithms" (Expand Search), "element new algorithm" (Expand Search), "element em algorithm" (Expand Search), "elements ree algorithm" (Expand Search), "element te algorithm" (Expand Search), "element mesh algorithm" (Expand Search)
"element rf algorithm" » "element _ algorithm" (Expand Search), "element em algorithm" (Expand Search), "element ii algorithm" (Expand Search), "element ore algorithm" (Expand Search), "element te algorithm" (Expand Search)

Try widening your search to All Fields.

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