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
trung cua » truong cua, trung tuan, trung cap
tran tuan » tran xuan, tran thanh, tranh luan
ban cong » bang cong, van cong, phan cong
quang » quan

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