Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
va phuong » va thuong, cac phuong
trung va » truong va, trang va, trung ha
cong ban » cong bang, cong tan, cong dan
cong san » cong tac
khan cap » khan ap, khoan cam, phan cac
than cap » thanh lap, thanh cac, than cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - thanh trung va phuong ((cong ban) OR (cong san)) ((khan cap) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh trung va phuong ((cong ban) OR (cong san)) ((khan cap) OR (than cap))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh trung va phuong ((cong ban) OR (cong san)) ((khan cap) or (than cap))*".