Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
tranh cua » doanh cua, manh cua
dang cong » dung cong
khi xanh » khia canh, thi hanh, thi anh
cua dang » cua cong, cua ban
can cau » van cau, ca cau, cac cau
ban cau » bang cau, ban can, van cau

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 khi xanh - canh tranh cua dang cong thanh ((can cau) OR (ban cau))~.
• Adding a wildcard symbol may retrieve word variants: doi khi xanh - canh tranh cua dang cong thanh ((can cau) or (ban cau))*.