Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
trung tuan » trung thanh, trung tam, truong thanh
quang toan » quang tuan, quang tran, quang doan
tran tuan » tran xuan, tran quang, tran thanh
dung tong » dung trong, dung thong, dung cong
quan toan » quan doan, xuan toan, quan hoang

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 - thanh ((trung tuan) OR (tran tuan)) dung tong ((quan toan) OR (quang toan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu xanh - thanh ((trung tuan) or (tran tuan)) dung tong ((quan toan) OR (quang toan)) cau~".
• Adding a wildcard symbol may retrieve word variants: toc thieu xanh - thanh ((trung tuan) or (tran tuan)) dung tong ((quan toan) OR (quang toan)) cau*.