Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
cong thanh » dong thanh, cong trinh, cong tan
trung cua » truong cua, trung tuan, trung cap
ho chieu » theo chieu, hoc thieu, doi chieu
cua tong » cua cong, cua dong, cua nong
cong dan » cong san, cong tan, huong dan
than ban » thanh ban, toan ban, than man

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 cua tong ((cong dan) or (cong thanh)) than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh trung cua tong ((cong dan) OR (cong thanh)) than ban.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh trung cua tong ((cong dan) or (cong thanh)) than ban*.