Perhaps you should try some spelling variations:
"plant processing algorithm" » "post processing algorithm" (Expand Search), "image processing algorithm" (Expand Search), "data processing algorithm" (Expand Search)
"element leiden algorithm" » "element learner algorithm" (Expand Search), "element kepler algorithm" (Expand Search), "element mean 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)

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: (("plant processing algorithm") OR ((("element mesh algorithm") OR ("element leiden algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"plant processing algorithm\") OR (((\"element mesh algorithm\") OR (\"element leiden algorithm\"))))".
• Removing quotes may allow a broader search: (( plant processing algorithm ) OR ((( element mesh algorithm ) OR ( element leiden algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("plant processing algorithm") OR ((("element mesh algorithm") OR ("element leiden algorithm"))))*.