Perhaps you should try some spelling variations:
"data processing algorithm" » "data modeling algorithm" (Expand Search), "data routing algorithm" (Expand Search), "data tracking algorithm" (Expand Search), "image processing algorithm" (Expand Search)
"elements ree algorithms" » "elements tree algorithms" (Expand Search), "elements three algorithms" (Expand Search), "elements rl algorithms" (Expand Search), "element ree algorithms" (Expand Search), "elements res algorithms" (Expand Search), "elements fe algorithms" (Expand Search)
"elements based algorithm" » "experiments based algorithm" (Expand Search), "elements related algorithm" (Expand Search)

Try widening your search to All Fields.

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