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