Perhaps you should try some spelling variations:
"data processing algorithm" » "data modeling algorithm" (Expand Search), "data routing algorithm" (Expand Search), "data tracking algorithm" (Expand Search), "image processing algorithm" (Expand Search)
"elements both algorithms" » "elements art algorithms" (Expand Search), "elements four algorithms" (Expand Search), "elements box algorithm" (Expand Search), "elements b algorithms" (Expand Search), "elements wt algorithms" (Expand Search)
"element means algorithm" » "element search algorithm" (Expand Search), "element mesh 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 ((("elements both algorithms") OR ("element means algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"data processing algorithm\") OR (((\"elements both algorithms\") OR (\"element means algorithm\"))))".
• Removing quotes may allow a broader search: (( data processing algorithm ) OR ((( elements both algorithms ) OR ( element means algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("data processing algorithm") OR ((("elements both algorithms") OR ("element means algorithm"))))*.