Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
khong cong » thong cong, khong cang, chong cong
cua khong » hua khong, cua phuong, cua thuong
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.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu xanh - ((canh tranh) or (thanh trung)) cua khong cong tan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - ((canh tranh) OR (thanh trung)) cua khong cong tan van ban*.