Perhaps you should try some spelling variations:
"data processing algorithm" » "data processing algorithms" (Expand Search)
"settlement data algorithm" » "settlement jaya algorithm" (Expand Search), "settlement deer algorithm" (Expand Search)
"element cnn algorithm" » "element rd algorithm" (Expand Search), "element colony algorithm" (Expand Search), "element cosine algorithm" (Expand Search), "elements cnn 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 ((("settlement data algorithm") OR ("element cnn algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"data processing algorithm\") OR (((\"settlement data algorithm\") OR (\"element cnn algorithm\"))))".
• Removing quotes may allow a broader search: (( data processing algorithm ) OR ((( settlement data algorithm ) OR ( element cnn algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("data processing algorithm") OR ((("settlement data algorithm") OR ("element cnn algorithm"))))*.