Perhaps you should try some spelling variations:
"data processing algorithm" » "data processing algorithms" (Expand Search)
"element method algorithms" » "elements method algorithms" (Expand Search), "element methods algorithms" (Expand Search)
"element mdem algorithms" » "elements mdem algorithms" (Expand Search), "element dem algorithms" (Expand Search), "element adem algorithms" (Expand Search), "element mdea 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 method algorithms") OR ("element mdem algorithms"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"data processing algorithm\") OR (((\"element method algorithms\") OR (\"element mdem algorithms\"))))".
• Removing quotes may allow a broader search: (( data processing algorithm ) OR ((( element method algorithms ) OR ( element mdem algorithms )))).
• Adding a wildcard symbol may retrieve word variants: (("data processing algorithm") OR ((("element method algorithms") OR ("element mdem algorithms"))))*.