Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, mot chieu
va chuong » van chuong, va thuong, va huong
va phuong » va thuong, cac phuong
dong tac » cong tac, dong tai, dong bac
quan ha » quan he

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu xanh - thanh trung ((va chuong) or (va phuong)) dong tac quan ha~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - thanh trung ((va chuong) OR (va phuong)) dong tac quan ha.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh trung ((va chuong) or (va phuong)) dong tac quan ha*.