Perhaps you should try some spelling variations:
dong thanh » truong thanh
thanh tran » thanh trang, thanh toan, thanh tra
hien xanh » hien hanh, hien nhanh, chieu xanh
canh dung » canh duong, anh dung, manh dung
dong dong » dong duong, cong dong, dung dong
dung cua » dung luan, dung cho
cua dong » chua dong, cua cong, cua dang
tran cau » tran chau, toan cau, ran cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - canh dung cua dong dong thanh tran cau~.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - canh dung cua dong dong thanh tran cau*.