Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
tuan dung » tuan duong, tran dung, tan dung
dung cong » dung trong
tac tieng » tap tieng, ta tieng, tay tieng
tieng tap » tieng phap, tieng thai, tieng han
san tuan » van tuan, san luan, san quan
cong tac » cong ty

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) OR (((hien hanh) OR (dieu hanh)))) - thanh san tuan dung cong tac tieng tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (((hien hanh) OR (dieu hanh)))) - thanh san tuan dung cong tac tieng tap~".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (((hien hanh) OR (dieu hanh)))) - thanh san tuan dung cong tac tieng tap*.