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, ho chieu
trung can » trung cap, trung van, trong can
ban cong » bang cong, van cong, phan cong
cong tan » cong tac, cong san, cong thanh
toan ban » van ban
toan cao » toan tap
can ban » van ban

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 can ban cong tan ((toan ban) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - thanh trung can ban cong tan ((toan ban) OR (toan cao))*.