Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, thien anh, thien danh
thanh tung » thanh cong
cang thang » cong thanh, dang thanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
dong cong » duong cong, dung cong, dang cong
cong cang » cong cong, cong lang, cong vang
thang cap » thong cap, than cap, trung cap
tung cua » trung cua, tuong cua, dung cua
cua dong » chua dong, cua cong, cua dang

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