Perhaps you should try some spelling variations:
"light processing algorithm" » "signal processing algorithm" (Expand Search), "post processing algorithm" (Expand Search), "time processing algorithm" (Expand Search)
"element data algorithms" » "element art algorithms" (Expand Search), "element all algorithms" (Expand Search), "element de algorithms" (Expand Search), "relevant data algorithms" (Expand Search), "movement data algorithms" (Expand Search), "present data algorithms" (Expand Search)
"element rl algorithm" » "element rl algorithms" (Expand Search), "element rf algorithm" (Expand Search), "element ml algorithms" (Expand Search), "element ree algorithm" (Expand Search), "element ore algorithm" (Expand Search), "element _ algorithm" (Expand Search)

Try widening your search to All Fields.

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