Perhaps you should try some spelling variations:
"implement retinex algorithm" » "implement routine algorithm" (Expand Search), "implement routing algorithm" (Expand Search), "implement learner algorithm" (Expand Search), "implement cosine algorithm" (Expand Search)
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean algorithm" (Expand Search)
"element rf algorithm" » "element _ algorithm" (Expand Search), "element ii algorithm" (Expand Search), "element art algorithms" (Expand Search), "element ore algorithm" (Expand Search), "element ree algorithm" (Expand Search)

You may be able to get more results by adjusting your search query.

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