Perhaps you should try some spelling variations:
"data tracking algorithms" » "data training algorithms" (Expand Search), "data learning algorithms" (Expand Search), "data making algorithm" (Expand Search), "path tracking algorithms" (Expand Search), "data backing algorithms" (Expand Search), "uav tracking algorithms" (Expand Search)
"dft modeling algorithm" » "dft making algorithm" (Expand Search), "data modeling algorithm" (Expand Search), "afm modeling algorithm" (Expand Search), "path modeling algorithm" (Expand Search)
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean algorithm" (Expand Search), "elements 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: (("element method algorithm") OR ((("data tracking algorithms") OR ("dft modeling algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element method algorithm\") OR (((\"data tracking algorithms\") OR (\"dft modeling algorithm\"))))".
• Removing quotes may allow a broader search: (( element method algorithm ) OR ((( data tracking algorithms ) OR ( dft modeling algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element method algorithm") OR ((("data tracking algorithms") OR ("dft modeling algorithm"))))*.