Perhaps you should try some spelling variations:
"complement custom algorithm" » "complement system algorithm" (Expand Search), "complement past algorithm" (Expand Search), "complement fusion algorithm" (Expand Search), "complement control algorithm" (Expand Search), "complement lasso 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)
"element data algorithm" » "element data algorithms" (Expand Search), "element update algorithm" (Expand Search), "element atlas algorithm" (Expand Search), "settlement data algorithm" (Expand Search), "relevant data algorithm" (Expand Search), "movement data 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 data algorithm") OR ("complement custom algorithm"))) OR ("level using algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element data algorithm\") OR (\"complement custom algorithm\"))) OR (\"level using algorithm\"))".
• Removing quotes may allow a broader search: (((( element data algorithm ) OR ( complement custom algorithm ))) OR ( level using algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element data algorithm") OR ("complement custom algorithm"))) OR ("level using algorithm"))*.