Perhaps you should try some spelling variations:
"element means algorithm" » "element search algorithm" (Expand Search), "elements means algorithm" (Expand Search)
"effects test algorithm" » "effects deer algorithm" (Expand Search), "effects eees algorithm" (Expand Search)
"element mapping algorithm" » "elements mapping algorithm" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("element mapping algorithm") OR ("element means algorithm"))) OR ("effects test algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element mapping algorithm\") OR (\"element means algorithm\"))) OR (\"effects test algorithm\"))*".
• Removing quotes may allow a broader search: (((( element mapping algorithm ) OR ( element means algorithm ))) OR ( effects test algorithm ))*.