No ID dendrobium

[chiayusu]

Hi I'm still very new to orchid , still learning how to take care of them .I received this plant about two years ago. The person I bought the orchid from said that he lost the ID . I try to make this plant bloom but I couldn't , it is hard to identify this plant without flower but I still want to see if anymore is able to help me. (The size is still very small ,it's planted in a 3inch pot )
plus, if I know the ID(approx) I may have a better way of letting it bloom.