Perhaps you should try some spelling variations:
"element mapping algorithm" » "element sampling algorithm" (Expand Search), "element matching algorithm" (Expand Search), "element mining algorithm" (Expand Search), "elemental mapping algorithm" (Expand Search), "element modeling algorithm" (Expand Search)
"sediment means algorithm" » "sediment search algorithm" (Expand Search), "sediment gas algorithm" (Expand Search), "sediment edna algorithm" (Expand Search), "sediment metrics algorithm" (Expand Search)
"sediment based algorithm" » "sentiment based algorithm" (Expand Search), "sediment hosted algorithm" (Expand Search), "sediment water 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 means algorithm") OR ("sediment based algorithm"))) OR ("element mapping algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"sediment means algorithm\") OR (\"sediment based algorithm\"))) OR (\"element mapping algorithm\"))".
• Removing quotes may allow a broader search: (((( sediment means algorithm ) OR ( sediment based algorithm ))) OR ( element mapping algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("sediment means algorithm") OR ("sediment based algorithm"))) OR ("element mapping algorithm"))*.