regex - Regular expression to match a line containing only the list of words -

looking regular expression match given list of words in strings

the regular expression pattern match strings containing boy or apple in below list of strings

[apple, boy, apple, boy]  [boy, boy, boy, boy]  [apple, boy, boy, boy]  

to match

[apple, boy, apple, boy] [apple, boy, boy, boy]  

try if works:

(?=.*apple)(?=.*boy).*