Perhaps you should try some spelling variations:
"algorithm python function" » "algorithms within function" (Expand Search), "algorithm both function" (Expand Search), "algorithm protein function" (Expand Search)
"algorithm within function" » "algorithm fibrin function" (Expand Search), "algorithm protein function" (Expand Search), "algorithm catenin function" (Expand Search)
"algorithm cost function" » "algorithm co function" (Expand Search), "algorithm could function" (Expand Search), "algorithm cl function" (Expand Search), "algorithm test functions" (Expand Search), "algorithm cell 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 within function") OR ((("algorithm python function") OR ("algorithm cost function"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"algorithm within function\") OR (((\"algorithm python function\") OR (\"algorithm cost function\"))))".
• Removing quotes may allow a broader search: (( algorithm within function ) OR ((( algorithm python function ) OR ( algorithm cost function )))).
• Adding a wildcard symbol may retrieve word variants: (("algorithm within function") OR ((("algorithm python function") OR ("algorithm cost function"))))*.