Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
tong cong » trong cong, cong cong, dung cong
thanh hoa » thanh pho
chao chu » cho chu, cua chu, cao cho
chu tinh » chau tinh, chua tinh, cuu tinh
va tong » va thong, va tuong, va trong
hoa tap » khoa tap, hoc tap, hoa tan

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

• Performing a fuzzy search may retrieve terms with similar spellings: chao chu tinh - ((hanh chinh) or (canh tranh)) va tong cong thanh hoa tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao chu tinh - ((hanh chinh) OR (canh tranh)) va tong cong thanh hoa tap.
• Adding a wildcard symbol may retrieve word variants: chao chu tinh - ((hanh chinh) or (canh tranh)) va tong cong thanh hoa tap*.