Perhaps you should try some spelling variations:
"element model algorithm" » "element mould algorithm" (Expand Search), "elements model algorithm" (Expand Search)
"element means algorithm" » "element search algorithm" (Expand Search), "elements means algorithm" (Expand Search)
"movement tracking algorithm" » "movement training algorithm" (Expand Search), "movement taking 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: (("movement tracking algorithm") OR ((("element model algorithm") OR ("element means algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"movement tracking algorithm\") OR (((\"element model algorithm\") OR (\"element means algorithm\"))))".
• Removing quotes may allow a broader search: (( movement tracking algorithm ) OR ((( element model algorithm ) OR ( element means algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("movement tracking algorithm") OR ((("element model algorithm") OR ("element means algorithm"))))*.