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: (("path tracking algorithm") OR ((("elements tree algorithms") OR ("elements cscap algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"path tracking algorithm\") OR (((\"elements tree algorithms\") OR (\"elements cscap algorithm\"))))".
• Removing quotes may allow a broader search: (( path tracking algorithm ) OR ((( elements tree algorithms ) OR ( elements cscap algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("path tracking algorithm") OR ((("elements tree algorithms") OR ("elements cscap algorithm"))))*.