Perhaps you should try some spelling variations:
"settlement update algorithm" » "settlement data algorithm" (Expand Search), "settlement under algorithm" (Expand Search), "settlement pass algorithm" (Expand Search), "settlement data algorithms" (Expand Search), "settlement ipca algorithm" (Expand Search)
"neural coding algorithm" » "neural cosine algorithm" (Expand Search), "neural modeling algorithm" (Expand Search), "neural finding algorithm" (Expand Search)
"element each algorithm" » "element search algorithm" (Expand Search), "element means algorithm" (Expand Search), "element data algorithm" (Expand Search), "element mesh algorithm" (Expand Search)

Try widening your search to All Fields.

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