Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, hieu nganh, hien hanh
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((((hieu manh) or (dieu hanh))) or (chieu sang)) - thanh trung cua thong cong tac than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((hieu manh) OR (dieu hanh))) OR (chieu sang)) - thanh trung cua thong cong tac than cau.
• Adding a wildcard symbol may retrieve word variants: ho ((((hieu manh) or (dieu hanh))) or (chieu sang)) - thanh trung cua thong cong tac than cau*.