Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
trung cua » truong cua, trung tuan, trung cap
cua tong » cua cong, cua dong, cua nong
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
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: doi chieu sang - thanh trung cua tong ((cong dan) OR (cong tan)) than ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - thanh trung cua tong ((cong dan) OR (cong tan)) than ban".
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh trung cua tong ((cong dan) OR (cong tan)) than ban*.