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 trong » gian trong
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, cong tan, huong dan
toan cao » toan ban, toan tap

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