Perhaps you should try some spelling variations:
thanh trung » thanh tung
hieu xanh » chieu xanh, hieu manh, hieu nganh
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
phan cac » phan dau, phan lap, phan van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - thanh trung cap thong ((cong dan) or (cong san)) ((phan cac) OR (nhan cach))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - thanh trung cap thong ((cong dan) OR (cong san)) ((phan cac) OR (nhan cach)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - thanh trung cap thong ((cong dan) or (cong san)) ((phan cac) OR (nhan cach))".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - thanh trung cap thong ((cong dan) or (cong san)) ((phan cac) OR (nhan cach))*.