Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, thong thong, phong chong
thanh toan » thanh hoa, thanh san
trung dap » trung cap, trung dai, trung dam
tong cong » trong cong, cong cong, dung cong

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: theo chieu sach - thanh trung dap ((thong cong) OR (tong cong)) ((thanh toan) OR (tinh toan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - thanh trung dap ((thong cong) OR (tong cong)) ((thanh toan) or (tinh toan)) cau~".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh trung dap ((thong cong) OR (tong cong)) ((thanh toan) or (tinh toan)) cau*.