Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
hanh doan » hanh doanh, thinh doan, nhanh hoan
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
dan hang » ban hang, van hang, dat hang
hang dau » hang va, hang tai
va dung » van dung, va duong, vat dung

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 - ((hanh doan) or (thanh toan)) va dung cong dan hang dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((hanh doan) OR (thanh toan)) va dung cong dan hang dau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((hanh doan) or (thanh toan)) va dung cong dan hang dau*.