Perhaps you should try some spelling variations:
"algorithm within function" » "algorithm its function" (Expand Search)
"algorithm both function" » "algorithm goa function" (Expand Search), "algorithm its function" (Expand Search), "algorithm cost function" (Expand Search)
"algorithm aoa function" » "algorithm goa function" (Expand Search), "algorithm fa function" (Expand Search), "algorithm a function" (Expand Search), "algorithm cost function" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("algorithm both function") OR ("algorithm aoa function"))) OR ("algorithm within function"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"algorithm both function\") OR (\"algorithm aoa function\"))) OR (\"algorithm within function\"))".
• Removing quotes may allow a broader search: (((( algorithm both function ) OR ( algorithm aoa function ))) OR ( algorithm within function )).
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