Perhaps you should try some spelling variations:
trong thanh » truong thanh, trung thanh, rong thanh
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
trung dai » truong dai, truong dao, trung tam
ho chieu » theo chieu, hoc thieu, doi chieu
dai dung » dai duong, dan dung, mai dung
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 dai dung trong thanh ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh trung dai dung trong thanh ((toan tap) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh trung dai dung trong thanh ((toan tap) or (toan ban))*.