Perhaps you should try some spelling variations:
"elements mining algorithm" » "elements cosine algorithm" (Expand Search)
"level coding algorithm" » "level cosine algorithm" (Expand Search), "level colony algorithm" (Expand Search), "level scheduling algorithm" (Expand Search)
"element based algorithm" » "event based algorithm" (Expand Search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element based algorithm\") OR (((\"elements mining algorithm\") OR (\"level coding algorithm\"))))~".
• Removing quotes may allow a broader search: (( element based algorithm ) OR ((( elements mining algorithm ) OR ( level coding algorithm ))))~.
• Adding a wildcard symbol may retrieve word variants: (("element based algorithm") OR ((("elements mining algorithm") OR ("level coding algorithm"))))*.