Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
trung cua » truong cua, trung tuan, trung cap
doc hieu » toc thieu, hoc thieu, hoc hien
ban cong » bang cong, van cong, phan cong
cong van » cong vang, cong san, song van
tuan thu » toan thuc, van thu
quan cua » quan luan, ban cua, gian cua

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) or (doc hieu)) xanh - thanh trung cua ban cong van ((tuan thu) or (quan cua))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (doc hieu)) xanh - thanh trung cua ban cong van ((tuan thu) OR (quan cua)).
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (doc hieu)) xanh - thanh trung cua ban cong van ((tuan thu) or (quan cua))*.