Perhaps you should try some spelling variations:
"select controls algorithm" » "select control algorithm" (Expand Search), "selected controls algorithm" (Expand Search)
"level modeling algorithm" » "level scheduling algorithm" (Expand Search), "event modeling algorithm" (Expand Search)
"elements cscap algorithm" » "elements cosine 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: (((("elements cscap algorithm") OR ("select controls algorithm"))) OR ("level modeling algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"elements cscap algorithm\") OR (\"select controls algorithm\"))) OR (\"level modeling algorithm\"))".
• Removing quotes may allow a broader search: (((( elements cscap algorithm ) OR ( select controls algorithm ))) OR ( level modeling algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("elements cscap algorithm") OR ("select controls algorithm"))) OR ("level modeling algorithm"))*.