Perhaps you should try some spelling variations:
thanh trung » thanh tung
hieu lang » chieu sang, hieu quang, nhieu tang
hang cong » dang cong, bang cong, thanh cong
hang nong » thang long, han tong
trung ha » trung hoc, trung tam, trung cap
phan cau » phan cac, phan tu, phan lap
phan dau » phan tu, hang dau
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - thanh trung ha ((hang cong) OR (hang nong)) van ((phan cau) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - thanh trung ha ((hang cong) OR (hang nong)) van ((phan cau) OR (phan dau))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - thanh trung ha ((hang cong) OR (hang nong)) van ((phan cau) or (phan dau))*".