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
hoi chieu » doi chieu, ho chieu, hai chieu
dung cong » dung trong
tam dung » tam duong, tac dung, tan dung
toan cao » toan ban
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi chieu xanh - thanh trung tam dung cong thanh ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi chieu xanh - thanh trung tam dung cong thanh ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoi chieu xanh - thanh trung tam dung cong thanh ((toan cao) or (toan tap))*.