Perhaps you should try some spelling variations:
"data processing algorithm" » "data processing algorithms" (Expand Search)
"element learning algorithm" » "element learning algorithms" (Expand Search), "student learning algorithm" (Expand Search)
"present data algorithm" » "present jaya algorithm" (Expand Search), "present deer algorithm" (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

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