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 forest algorithm" » "element ore algorithm" (Expand Search)
"present novel algorithm" » "present model algorithm" (Expand Search)

Try widening your search to All Fields.

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