Perhaps you should try some spelling variations:
tranh chua » tranh cua, trinh chuan, tranh chap
cong thanh » dong thanh, cong trinh, cong tan
chua dong » cua dong, ha dong, huy dong
dong cong » duong cong, dung cong, dang cong
ho chinh » hoc chinh, cho chinh, hoa chinh
ban can » ban hang, ban hanh, ban quan
ban dan » ban hang, ban hanh, ban quan

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 chinh sach - canh tranh chua dong cong thanh ((ban can) OR (ban dan))~.
• Adding a wildcard symbol may retrieve word variants: ho chinh sach - canh tranh chua dong cong thanh ((ban can) or (ban dan))*.