Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh tran » thanh trang, thanh toan, thanh tra
tuan nhung » quan nhung, tuan hung, thuat nhung
nhung cong » dung cong, thong cong, hang cong
quang tuan » quang thanh, quan luan, quang cua
tran tuan » tran xuan, tran quang, tran thanh
vang tuan » van tuan, vong tuan, hoang tuan

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 (chinh sach)) - thanh tran tuan nhung cong ((vang tuan) OR (quang tuan)) tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (chinh sach)) - thanh tran tuan nhung cong ((vang tuan) OR (quang tuan)) tap~".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (chinh sach)) - thanh tran tuan nhung cong ((vang tuan) OR (quang tuan)) tap*.