Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
thanh tran » thanh trang, thanh toan, thanh tra
tran phong » tran hong, van phong, tran hoang
phong cong » phong chong, thong cong, chong cong
tran tran » tan tran, tran tuan, tran tan
dien dan » hien dai, vien dai, dien va
gian dan » gian lang
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cau » toan cau, phan cau, than cap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien danh) or (((dien dan) or (gian dan)))) - thanh tran tran phong cong tac than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien danh) OR (((dien dan) OR (gian dan)))) - thanh tran tran phong cong tac than cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien danh) or (((dien dan) or (gian dan)))) - thanh tran tran phong cong tac than cau*.