Perhaps you should try some spelling variations:
trong thanh » truong thanh, trung thanh, rong thanh
chieu xanh » chieu sach, chieu sang, chieu tinh
truong cua » truong quan, huong cua, thong cua
truong cao » truong dai
thanh chan » thanh phan, thanh nhan, thanh cha
hoc chieu » hoc thieu, ho chieu, hoc hien
truong ca » truong va, trong ca, truong dai
chan tu » phan tu, han tu, chon tu

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 chieu xanh - thanh ((truong cua) OR (((truong ca) OR (truong cao)))) dung trong thanh chan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - thanh ((truong cua) or (((truong ca) OR (truong cao)))) dung trong thanh chan tu~".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - thanh ((truong cua) or (((truong ca) OR (truong cao)))) dung trong thanh chan tu*.