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), "implemented routine algorithm" (Expand Search), "implementing routine algorithm" (Expand Search)
"element update algorithm" » "element pass algorithm" (Expand Search), "element data algorithms" (Expand Search), "element ipca algorithm" (Expand Search), "element data algorithm" (Expand Search)
"elements wt algorithm" » "elements _ algorithm" (Expand Search), "elements ii algorithm" (Expand Search), "elements rf algorithm" (Expand Search), "elements b algorithm" (Expand Search), "elements fe algorithm" (Expand Search)

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