Perhaps you should try some spelling variations:
"experiments each algorithm" » "experiments based algorithm" (Expand Search), "experiments _ algorithm" (Expand Search), "experiments show algorithm" (Expand Search), "experiments search algorithm" (Expand Search)
"level coding algorithm" » "level cosine algorithm" (Expand Search), "level modeling algorithm" (Expand Search), "level finding algorithm" (Expand Search), "level according algorithm" (Expand Search), "level using algorithm" (Expand Search)
"element means algorithm" » "element search algorithm" (Expand Search), "element mesh 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: (((("element means algorithm") OR ("experiments each algorithm"))) OR ("level coding algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element means algorithm\") OR (\"experiments each algorithm\"))) OR (\"level coding algorithm\"))".
• Removing quotes may allow a broader search: (((( element means algorithm ) OR ( experiments each algorithm ))) OR ( level coding algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element means algorithm") OR ("experiments each algorithm"))) OR ("level coding algorithm"))*.