Perhaps you should try some spelling variations:
thanh trung » thanh tung
quang thanh » quan thanh, hoang thanh, muong thanh
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
quang than » quang thang, quang tuan, quang tran
trung cad » trung cap, trung ca, trung can
cad trong » cay trong, ca trong, chat trong

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 xanh) or (chieu sach)) - thanh trung cad trong cong ((quang than) OR (quang thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sach)) - thanh trung cad trong cong ((quang than) OR (quang thanh)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chieu sach)) - thanh trung cad trong cong ((quang than) OR (quang thanh)) cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sach)) - thanh trung cad trong cong ((quang than) OR (quang thanh)) cau*.