Perhaps you should try some spelling variations:
thanh trung » thanh tung
hien khanh » hien hanh, hien nhanh, dien khanh
chieu xanh » chieu sach, chieu sang, chieu tinh
cong huong » cong thuong, cong luong, cong hung
trung cap » truong cao, trung tam
cap cong » cac cong, cao cong, tap cong
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: hoc ((hien khanh) or (chieu xanh)) - thanh trung cap cong huong dan ((phan lap) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien khanh) OR (chieu xanh)) - thanh trung cap cong huong dan ((phan lap) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: hoc ((hien khanh) or (chieu xanh)) - thanh trung cap cong huong dan ((phan lap) or (phan dau))*.