Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thien hach » thien thanh, hien hanh
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
dung cong » dung trong
canh van » anh van, can van, cach van
canh dan » sanh dan, thanh dan, cac dan
cua dung » cua dang, cua dong, qua dung
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sach) or (thien hach)) - ((canh van) or (canh dan)) cua dung cong thanh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (thien hach)) - ((canh van) OR (canh dan)) cua dung cong thanh toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (thien hach)) - ((canh van) or (canh dan)) cua dung cong thanh toan tap*.