Perhaps you should try some spelling variations:
"data processing algorithm" » "data processing algorithms" (Expand Search)
"image scheduling algorithm" » "task scheduling algorithm" (Expand Search)
"element data algorithm" » "element jaya algorithm" (Expand Search), "element deer algorithm" (Expand Search), "elements data algorithm" (Expand Search)

Try widening your search to All Fields.

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