Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thong dong » thong duong, thuong dong, thong cong
trinh va » trinh van, trinh vat, trinh ve
va thong » va thuong, va phuong, he thong
dong van » duong van, dang van, dong von
tai ban » tai ngan, tai benh
tai san » tai ngan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((25 trieu) OR (30 trieu)) tinh - hanh trinh va thong dong van ((tai ban) OR (tai san))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((25 trieu) or (30 trieu)) tinh - hanh trinh va thong dong van ((tai ban) OR (tai san))~".
• Adding a wildcard symbol may retrieve word variants: ((25 trieu) or (30 trieu)) tinh - hanh trinh va thong dong van ((tai ban) OR (tai san))*.