Perhaps you should try some spelling variations:
thanh trung » thanh tung
thuong cong » thong cong, thuong con, thuong dong
hieu nganh » vien nganh, hiem ngan, hieu manh
chieu xanh » chieu sach, chieu sang, chieu tinh
cua thuong » cua truong, cua phuong, ca thuong
hien hanh » dieu hanh
trung cua » truong cua, trung tuan, trung cap
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((((chieu xanh) or (hien hanh))) or (hieu nganh)) - thanh trung cua thuong cong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((chieu xanh) OR (hien hanh))) OR (hieu nganh)) - thanh trung cua thuong cong san toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((((chieu xanh) or (hien hanh))) or (hieu nganh)) - thanh trung cua thuong cong san toan cao*.