Perhaps you should try some spelling variations:
"complement based algorithm" » "complement past algorithm" (Expand Search), "complement cascade algorithm" (Expand Search), "complement system algorithm" (Expand Search)
"elements cscap algorithm" » "elements cc3d algorithm" (Expand Search), "elements ipca algorithm" (Expand Search), "elements custom algorithm" (Expand Search), "elements crcy algorithm" (Expand Search)
"level using algorithm" » "level using algorithms" (Expand Search), "level routing algorithm" (Expand Search), "level fusion algorithm" (Expand Search), "levels using 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 ("complement based algorithm"))) OR ("level using algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"elements cscap algorithm\") OR (\"complement based algorithm\"))) OR (\"level using algorithm\"))".
• Removing quotes may allow a broader search: (((( elements cscap algorithm ) OR ( complement based algorithm ))) OR ( level using algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("elements cscap algorithm") OR ("complement based algorithm"))) OR ("level using algorithm"))*.