Perhaps you should try some spelling variations:
"data processing algorithm" » "data processing algorithms" (Expand Search)
"element data algorithm" » "element jaya algorithm" (Expand Search), "element deer algorithm" (Expand Search), "elements data algorithm" (Expand Search)
"element four algorithms" » "elements four algorithms" (Expand Search), "element our algorithms" (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 four algorithms") OR ("element data algorithm"))))~.
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• Removing quotes may allow a broader search: (( data processing algorithm ) OR ((( element four algorithms ) OR ( element data algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("data processing algorithm") OR ((("element four algorithms") OR ("element data algorithm"))))*.