Perhaps you should try some spelling variations:
thanh trung » thanh tung
doi chieu » doi chi, ho chieu, mot chieu
trung cap » truong cao, trung tam
cap thong » cap tong, chap thuong, phap thong
doc hieu » toc thieu, hoc thieu, hoc hien
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
khan cap » khan ap, than cap, khoan cam

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) or (doc hieu)) xanh - thanh trung cap thong ((cong dan) OR (cong san)) khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doc hieu)) xanh - thanh trung cap thong ((cong dan) OR (cong san)) khan cap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (doc hieu)) xanh - thanh trung cap thong ((cong dan) OR (cong san)) khan cap*".