Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, thien anh, thien danh
thanh tung » thanh cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
tung chua » cung chua, cong chua, dung nhua
chua dong » cua dong, ha dong, huy dong
dong cong » duong cong, dung cong, dang cong
cong san » cong tac
than cau » toan cau, phan cau, than cap
khan cap » khan ap, than cap, khoan cam

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 (hieu manh)) - thanh tung chua dong cong san ((than cau) or (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - thanh tung chua dong cong san ((than cau) OR (khan cap)).
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (hieu manh)) - thanh tung chua dong cong san ((than cau) or (khan cap))*.