Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
thanh tung » thanh cong
dang cong » dung cong
trinh han » trinh quan
tung cua » trung cua, tuong cua, dung cua
cua dang » cua cong, cua ban
han cau » hang cau, phan cau, van cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien nhanh - thanh tung cua dang cong trinh han cau~.
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - thanh tung cua dang cong trinh han cau*.