Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
thong cong » trong cong, tong cong, thong thong
mot chieu » doi chieu, ho chieu
tranh cua » doanh cua, manh cua
cua thong » cua thuong, cua khong, cua tong
cong tan » cong tac, cong san, cong thanh
tan van » tran van, tang van, luan van

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: ((theo chieu) OR (mot chieu)) xanh - canh tranh cua thong cong tan van ban~.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (mot chieu)) xanh - canh tranh cua thong cong tan van ban*.