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)
"element forest algorithm" » "element ore algorithm" (Expand Search)
"element based algorithm" » "engagement based 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 ((("element forest algorithm") OR ("element based algorithm"))))~.
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• Removing quotes may allow a broader search: (( data processing algorithm ) OR ((( element forest algorithm ) OR ( element based algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("data processing algorithm") OR ((("element forest algorithm") OR ("element based algorithm"))))*.