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 model function" » "algorithm novel function" (Expand Search), "algorithm model fusion" (Expand Search), "algorithm model reaction" (Expand Search)
"algorithm etc function" » "algorithm _ function" (Expand Search), "algorithm b function" (Expand Search), "algorithm a function" (Expand Search), "algorithm spc function" (Expand Search), "algorithm fc function" (Expand Search), "algorithm npc 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 python function") OR ((("algorithm etc function") OR ("algorithm model function"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"algorithm python function\") OR (((\"algorithm etc function\") OR (\"algorithm model function\"))))".
• Removing quotes may allow a broader search: (( algorithm python function ) OR ((( algorithm etc function ) OR ( algorithm model function )))).
• Adding a wildcard symbol may retrieve word variants: (("algorithm python function") OR ((("algorithm etc function") OR ("algorithm model function"))))*.