Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung thanh » truong thanh
hien nhanh » hien hanh, thien thanh, tien thanh
thanh dong » thanh duong, thanh cong, hanh dong
hien xanh » hien hanh, chieu xanh, hien khanh
dong cong » duong cong, dung cong, dang cong
cong san » cong tac
san van » tan van, luan van, tran van

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) or (hien nhanh)) - thanh trung thanh dong cong san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien nhanh)) - thanh trung thanh dong cong san van ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien nhanh)) - thanh trung thanh dong cong san van ban*.