Perhaps you should try some spelling variations:
"elements mapping algorithm" » "elements making algorithm" (Expand Search), "elements mining algorithm" (Expand Search), "elements learning algorithm" (Expand Search), "element mapping algorithm" (Expand Search), "elemental mapping algorithm" (Expand Search), "elements during algorithm" (Expand Search)
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean algorithm" (Expand Search)
"data using algorithm" » "data using algorithms" (Expand Search), "data routing algorithm" (Expand Search), "data fusion 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: (("data using algorithm") OR ((("elements mapping algorithm") OR ("element method algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"data using algorithm\") OR (((\"elements mapping algorithm\") OR (\"element method algorithm\"))))".
• Removing quotes may allow a broader search: (( data using algorithm ) OR ((( elements mapping algorithm ) OR ( element method algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("data using algorithm") OR ((("elements mapping algorithm") OR ("element method algorithm"))))*.