Perhaps you should try some spelling variations:
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean algorithm" (Expand Search), "elements method algorithm" (Expand Search)
"field using algorithms" » "field pacing algorithms" (Expand Search), "field nine algorithms" (Expand Search), "field sorting algorithms" (Expand Search), "field testing algorithms" (Expand Search), "field sensing algorithms" (Expand Search)
"data clustering algorithm" » "deep clustering algorithm" (Expand Search), "spatial clustering algorithm" (Expand Search), "dbscan clustering 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: (("element method algorithm") OR ((("data clustering algorithm") OR ("field using algorithms"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element method algorithm\") OR (((\"data clustering algorithm\") OR (\"field using algorithms\"))))".
• Removing quotes may allow a broader search: (( element method algorithm ) OR ((( data clustering algorithm ) OR ( field using algorithms )))).
• Adding a wildcard symbol may retrieve word variants: (("element method algorithm") OR ((("data clustering algorithm") OR ("field using algorithms"))))*.