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), "elements mges algorithm" (Expand Search), "element te algorithm" (Expand Search)
"element cnn algorithm" » "element mean algorithm" (Expand Search), "element _ algorithm" (Expand Search), "element ii 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: (("data preprocessinb algorithm") OR ((("element mesh algorithm") OR ("element cnn algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"data preprocessinb algorithm\") OR (((\"element mesh algorithm\") OR (\"element cnn algorithm\"))))".
• Removing quotes may allow a broader search: (( data preprocessinb algorithm ) OR ((( element mesh algorithm ) OR ( element cnn algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("data preprocessinb algorithm") OR ((("element mesh algorithm") OR ("element cnn algorithm"))))*.