Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
trung quan » truong quan, trong quan, trung tuan
quan dong » quang dong, quan long, quan hoang
ho chieu » theo chieu, hoc thieu, doi chieu
tong tap » tuong tac, trong tan, tong hop
cong tac » cong ty
toan 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: ho chieu sang - thanh trung quan dong ((tong tap) or (cong tac)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh trung quan dong ((tong tap) OR (cong tac)) toan ban*.