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

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