Perhaps you should try some spelling variations:
"element model algorithm" » "element mould algorithm" (Expand Search), "elements model algorithm" (Expand Search)
"sediment samples algorithm" » "sediments samples algorithm" (Expand Search), "sentiment samples algorithm" (Expand Search), "sediment sample algorithm" (Expand Search)
"element novel algorithm" » "elements novel algorithm" (Expand Search)

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