Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chieu tinh » trieu tinh, lieu tinh, chau tinh
truong cao » truong dai
doi chieu » doc hieu, doi chi, ho chieu
trung cap » trung tam
cong dan » cong san, cong tan, huong dan
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: doi chieu tinh - thanh ((trung cap) OR (truong cao)) thuong cong dan ((phan dau) or (phan lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - thanh ((trung cap) OR (truong cao)) thuong cong dan ((phan dau) OR (phan lap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu tinh - thanh ((trung cap) OR (truong cao)) thuong cong dan ((phan dau) or (phan lap))".
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - thanh ((trung cap) OR (truong cao)) thuong cong dan ((phan dau) or (phan lap))*.