Perhaps you should try some spelling variations:
"path tracking algorithm" » "path tracking algorithms" (Expand Search), "path training algorithms" (Expand Search), "path making algorithm" (Expand Search)
"elements tree algorithms" » "elements three algorithms" (Expand Search), "elements art algorithms" (Expand Search), "elements two algorithms" (Expand Search), "elements ree algorithms" (Expand Search), "element ree algorithms" (Expand Search), "elements res algorithms" (Expand Search)
"elements cscap algorithm" » "elements cc3d algorithm" (Expand Search), "elements ipca algorithm" (Expand Search), "elements custom algorithm" (Expand Search), "elements crcy 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: (((("elements tree algorithms") OR ("elements cscap algorithm"))) OR ("path tracking algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"elements tree algorithms\") OR (\"elements cscap algorithm\"))) OR (\"path tracking algorithm\"))".
• Removing quotes may allow a broader search: (((( elements tree algorithms ) OR ( elements cscap algorithm ))) OR ( path tracking algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("elements tree algorithms") OR ("elements cscap algorithm"))) OR ("path tracking algorithm"))*.