Perhaps you should try some spelling variations:
luan thong » luan phong, luan tuong, luat thong
thong cong » trong cong, tong cong, thong thong
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
hanh mang » nhanh mang, hanh trang, nhanh lang
mang luan » tang luan, hang luan, bang luan
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: ((25 trieu) OR (30 trieu)) tinh - hanh mang luan thong cong thanh toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((25 trieu) OR (30 trieu)) tinh - hanh mang luan thong cong thanh toan cao".
• Adding a wildcard symbol may retrieve word variants: ((25 trieu) OR (30 trieu)) tinh - hanh mang luan thong cong thanh toan cao*.