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