Perhaps you should try some spelling variations:
"data preprocessinb algorithm" » "data processing algorithm" (Expand Search), "data preprocessing algorithm" (Expand Search), "dataset preprocessing algorithm" (Expand Search)
"element mesh algorithm" » "element best algorithm" (Expand Search), "element mean algorithm" (Expand Search), "element means algorithm" (Expand Search), "element method algorithm" (Expand Search)
"element cnn algorithm" » "element _ algorithm" (Expand Search), "element new algorithm" (Expand Search), "element em algorithm" (Expand Search)

You may be able to get more results by adjusting your search query.

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