Perhaps you should try some spelling variations:
duong thanh » dong thanh, muong thanh, luong thanh
chieu sach » chiet tach, chieu sang, chieu xanh
thanh tung » thanh cong
dung duong » dung dong, dong duong, dung dung
thanh toan » thanh hoa, thanh san, tinh toan
tung dap » tung dan, trung dai, tuong dan
dap dung » ap dung, dan dung, dap ung
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) OR (chinh sach)) - thanh tung dap dung duong thanh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) OR (chinh sach)) - thanh tung dap dung duong thanh toan ban".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) OR (chinh sach)) - thanh tung dap dung duong thanh toan ban*.