Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sach » chinh sach, chiet tach, chieu sang
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh tran » hanh trang, thanh tran, thanh trang
hanh tram » hanh tam, hanh trang, thanh tran
van nhung » van nhuong, va nhung, van hung
ban hang » ngan hang

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: hoc chieu sach - ((hanh tran) OR (hanh tram)) van nhung cong ((xuan toan) OR (ban hang)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - ((hanh tran) OR (hanh tram)) van nhung cong ((xuan toan) or (ban hang)) cau~".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - ((hanh tran) OR (hanh tram)) van nhung cong ((xuan toan) or (ban hang)) cau*.