Perhaps you should try some spelling variations:
"element mapping algorithm" » "element sampling algorithm" (Expand Search), "element matching algorithm" (Expand Search), "element mining algorithm" (Expand Search), "elemental mapping algorithm" (Expand Search), "element modeling algorithm" (Expand Search)
"element means algorithm" » "element search algorithm" (Expand Search), "element mesh algorithm" (Expand Search)
"effects forest algorithm" » "effects test 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 mapping algorithm\") OR (\"element means algorithm\"))) OR (\"effects forest algorithm\"))~".
• Removing quotes may allow a broader search: (((( element mapping algorithm ) OR ( element means algorithm ))) OR ( effects forest algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (((("element mapping algorithm") OR ("element means algorithm"))) OR ("effects forest algorithm"))*.