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)
"based testing algorithm" » "based twisting algorithm" (Expand Search), "based hastings algorithm" (Expand Search), "based boosting algorithm" (Expand Search), "based teaching algorithm" (Expand Search), "care testing algorithm" (Expand Search), "acid testing algorithm" (Expand Search)
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean 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 ("based testing algorithm"))) OR ("element method algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"data processing algorithm\") OR (\"based testing algorithm\"))) OR (\"element method algorithm\"))".
• Removing quotes may allow a broader search: (((( data processing algorithm ) OR ( based testing algorithm ))) OR ( element method algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("data processing algorithm") OR ("based testing algorithm"))) OR ("element method algorithm"))*.