Perhaps you should try some spelling variations:
thanh trung » thanh tung
cong thanh » dong thanh, cong trinh, cong tan
duoc lieu » du lieu
tong cong » trong cong, cong cong, dung cong
thanh tra » thanh toan, thanh hoa
trung ve » trung va, trung vu, trung vi
so lieu » so dieu
ve tong » ve tuong, ve trong, ve cong
tra cau » tra sau, ta cau, tra cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so lieu) or (duoc lieu)) tinh - thanh trung ve tong cong thanh tra cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so lieu) OR (duoc lieu)) tinh - thanh trung ve tong cong thanh tra cau.
• Adding a wildcard symbol may retrieve word variants: ((so lieu) or (duoc lieu)) tinh - thanh trung ve tong cong thanh tra cau*.