Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
thanh tung » thanh cong
doi chieu » doc hieu, doi chi, mot chieu
va phuong » va thuong, cac phuong
ho chieu » theo chieu, hoc thieu, mot chieu
cong san » cong tac
phan dau » phan tu
hang dau » hang va, hang tai
tung va » trung va, tuong va, dung va

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: ((ho chieu) OR (doi chieu)) sach - thanh tung va phuong cong san ((phan dau) OR (hang dau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) sach - thanh tung va phuong cong san ((phan dau) or (hang dau))~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (doi chieu)) sach - thanh tung va phuong cong san ((phan dau) or (hang dau))*.