Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chieu xanh » chieu sach, chieu sang, chieu tinh
truong cao » truong dai
toc chieu » toc thieu, doc hieu, hoc thieu
trung cap » trung tam
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan tap » toan ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu xanh - thanh ((trung cap) OR (truong cao)) thuong cong tan toan tap~.
• Adding a wildcard symbol may retrieve word variants: toc chieu xanh - thanh ((trung cap) or (truong cao)) thuong cong tan toan tap*.