Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thieu xanh » chieu xanh, thien anh, thien danh
thanh tung » thanh cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
dong cong » duong cong, dung cong, dang cong
tung cua » trung cua, tuong cua, dung cua
cua dong » chua dong, cua cong, cua dang
cong san » cong tac
san than » sang than, san thanh, ban than
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((((thieu xanh) or (thien thanh))) or (hieu manh)) - thanh tung cua dong cong san than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((thieu xanh) OR (thien thanh))) OR (hieu manh)) - thanh tung cua dong cong san than cap.
• Adding a wildcard symbol may retrieve word variants: hoc ((((thieu xanh) or (thien thanh))) or (hieu manh)) - thanh tung cua dong cong san than cap*.