Perhaps you should try some spelling variations:
"algorithm cost function" » "algorithm aoa function" (Expand Search), "algorithm its function" (Expand Search)
"algorithm goa function" » "algorithm fa function" (Expand Search), "algorithm _ function" (Expand Search), "algorithms a function" (Expand Search)
"algorithm heart function" » "algorithm heat function" (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: (((("algorithm heart function") OR ("algorithm goa function"))) OR ("algorithm cost function"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"algorithm heart function\") OR (\"algorithm goa function\"))) OR (\"algorithm cost function\"))".
• Removing quotes may allow a broader search: (((( algorithm heart function ) OR ( algorithm goa function ))) OR ( algorithm cost function )).
• Adding a wildcard symbol may retrieve word variants: (((("algorithm heart function") OR ("algorithm goa function"))) OR ("algorithm cost function"))*.