There isn't one. They have the same meaning and can be used in the same way. Some people say that 'perhaps' is a little more formal, but they are basically interchangeable.
25 Mayıs 2015
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There isn't really a difference. In every instance I can think of they are interchangeable.
25 Mayıs 2015
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Hâlâ cevap bulamadın mı?
Sorularını yaz ve ana dil konuşanlar sana yardım etsin!