Perhaps you should try some spelling variations:
thanh trung » thanh tung
cong quang » luong quang, thong quang, duong quang
quang phan » quang chan, quang phat, quang thanh
tong cong » trong cong, cong cong, dung cong
thi hieu » thi chieu, thi hien, thi dieu
tam tong » tai tong, tam nong, tam song
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo tieu) or (thi hieu)) xanh - thanh trung tam tong cong quang phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo tieu) OR (thi hieu)) xanh - thanh trung tam tong cong quang phan cau.
• Adding a wildcard symbol may retrieve word variants: ((theo tieu) or (thi hieu)) xanh - thanh trung tam tong cong quang phan cau*.