Perhaps you should try some spelling variations:
"implement routine algorithm" » "implement routing algorithm" (Expand Search), "implement cosine algorithm" (Expand Search), "implement retinex algorithm" (Expand Search)
"settlement data algorithm" » "settlement data algorithms" (Expand Search), "settlement update algorithm" (Expand Search), "settlement atlas algorithm" (Expand Search)
"element td3 algorithm" » "element cc3d algorithm" (Expand Search), "element _ algorithm" (Expand Search), "element ii algorithm" (Expand Search), "element te algorithm" (Expand Search), "element study 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 data algorithm") OR ("element td3 algorithm"))) OR ("implement routine algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"settlement data algorithm\") OR (\"element td3 algorithm\"))) OR (\"implement routine algorithm\"))".
• Removing quotes may allow a broader search: (((( settlement data algorithm ) OR ( element td3 algorithm ))) OR ( implement routine algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("settlement data algorithm") OR ("element td3 algorithm"))) OR ("implement routine algorithm"))*.