Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
cong thanh » dong thanh, cong trinh, cong tan
doi chieu » doc hieu, doi chi, ho chieu
dong cong » duong cong, dung cong, dang cong
trung ha » trung hoc, trung tam, trung cap
toan ban » van ban
ha dong » hoat dong, van dong

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 ha dong cong thanh ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - thanh trung ha dong cong thanh ((toan tap) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh trung ha dong cong thanh ((toan tap) or (toan ban))*.