Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu sang » chieu sach, chieu xanh, hieu lang
trung cap » truong cao, trung tam
cap thong » cap tong, chap thuong, phap thong
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sang - thanh trung cap thong ((cong dan) or (cong tan)) ((phan lap) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sang - thanh trung cap thong ((cong dan) OR (cong tan)) ((phan lap) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sang - thanh trung cap thong ((cong dan) or (cong tan)) ((phan lap) or (phan dau))*.