Perhaps you should try some spelling variations:
ngang thanh » nang thanh, nganh thanh, ngan thanh
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh chau » thanh cha, thanh cham, thanh chu
tang luan » dung luan
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
anh tang » anh bang, anh dang, anh nang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu xanh)) - anh tang luan ((hang cong) OR (dang cong)) ngang thanh chau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (chieu xanh)) - anh tang luan ((hang cong) OR (dang cong)) ngang thanh chau~".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (chieu xanh)) - anh tang luan ((hang cong) OR (dang cong)) ngang thanh chau*.