Perhaps you should try some spelling variations:
"element method algorithm" » "element mould algorithm" (Expand Search), "elements method algorithm" (Expand Search)
"level coding algorithm" » "level cosine algorithm" (Expand Search), "level colony algorithm" (Expand Search), "level scheduling algorithm" (Expand Search)
"element mapping algorithm" » "elements mapping 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 method algorithm\") OR (\"element mapping algorithm\"))) OR (\"level coding algorithm\"))~".
• Removing quotes may allow a broader search: (((( element method algorithm ) OR ( element mapping algorithm ))) OR ( level coding algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (((("element method algorithm") OR ("element mapping algorithm"))) OR ("level coding algorithm"))*.