Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
thanh toan » thanh hoa, thanh san, tinh toan
cach dung » sach dung, cach mang, tac dung
qua cong » cua cong, va cong, cuu cong
dan chan » dan gian, dan ca, van chat

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 - cach dung ((qua cong) OR (qua song)) cong ((dan chan) OR (thanh toan)) cau~.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - cach dung ((qua cong) or (qua song)) cong ((dan chan) or (thanh toan)) cau*.