If you mean "bien, bueno y vale" as "well / ok, blah blah" there are some slightly differences, but you'll learn them with time. And it's all about context.
Examples
"Bien, ¿y qué estás esperando?" (Well, and what are you waiting for?) Also: "Bueno/Vale ¿y qué...."
"Bueno, yo cocino" (Ok, I cook) Also: (Bien/Vale, yo cocino)
"Vale, te veo mañana" (Ok, I'll see you tomorrow) Also: "Bien/Bueno, te veo..."
Or if you mean "bien, bueno y vale" as "good / something is good" you never use "vale"
"Bueno" modifies the "noun" it can be before or after the noun.
"Una buena computadora" / "Una computadora buena" (A good computer)
"Bien" modifies the "verb" it goes after the verb
"Hablar bien" (To speak good/correct)
"El canta bien" (He sings good / He's a good singer)
(: