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)
"data using algorithm" » "data using algorithms" (Expand Search), "data routing algorithm" (Expand Search), "data fusion algorithm" (Expand Search)
"test using algorithm" » "test using algorithms" (Expand Search), "test routing algorithm" (Expand Search), "test fusion algorithm" (Expand Search), "tests using algorithm" (Expand Search), "tested using 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 using algorithm") OR ("test using algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element method algorithm\") OR (((\"data using algorithm\") OR (\"test using algorithm\"))))".
• Removing quotes may allow a broader search: (( element method algorithm ) OR ((( data using algorithm ) OR ( test using algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element method algorithm") OR ((("data using algorithm") OR ("test using algorithm"))))*.