Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
canh trang » canh tranh, banh trang, thanh trang
hanh trang » thanh trung, canh tranh, hanh trinh
hoc thieu » toc thieu, hoc hien
va phuong » va thuong, cac phuong
cong doan » cong dan, cong hoan, dong doanh
doan phan » doanh phan, toan phan, dan phan
ho chieu » theo chieu, doi chieu, mot chieu
phan cac » nhan cach, phan dau, phan lap

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 (hoc thieu)) sach - ((canh trang) OR (hanh trang)) va phuong cong doan phan cac~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) sach - ((canh trang) OR (hanh trang)) va phuong cong doan phan cac~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) sach - ((canh trang) OR (hanh trang)) va phuong cong doan phan cac*.