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