Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
trung tuan » trung thanh, trung tam, tran tuan
trong dang » truong dang, trong dan, trong dong
han trong » hanh trong, nhan trong, phan trong
tuan han » tuan hoan, luan han, tran han
phan cau » phan dau, phan cac, phan tu
khan cap » khan ap, than cap, khoan cam

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: toc ((thieu xanh) OR (chieu xanh)) - thanh trung tuan han trong dang ((phan cau) OR (khan cap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((thieu xanh) OR (chieu xanh)) - thanh trung tuan han trong dang ((phan cau) or (khan cap))~".
• Adding a wildcard symbol may retrieve word variants: toc ((thieu xanh) OR (chieu xanh)) - thanh trung tuan han trong dang ((phan cau) or (khan cap))*.