Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, ho chieu
hoc thieu » toc thieu, hoc hien
canh manh » lanh manh, canh tranh, cach mang
cong cong » cong dong, trong cong, dung cong
dang cong » dung cong
tran tuan » tran xuan, tran quang, tran thanh
manh cua » doanh cua, ban cua

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: ((doi chieu) OR (hoc thieu)) sach - canh manh cua ((cong cong) OR (dang cong)) tan tran tuan~.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (hoc thieu)) sach - canh manh cua ((cong cong) or (dang cong)) tan tran tuan*.