Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
tung tuan » trung tuan, quang tuan, trang tuan
hung tuan » hung tran, quang tuan, trung tuan
dan toan » van toan, dan than, manh toan
van than » van thanh, van thang, van 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: theo chieu xanh - thanh ((tung tuan) OR (hung tuan)) thong thong ((dan toan) OR (van than)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - thanh ((tung tuan) OR (hung tuan)) thong thong ((dan toan) or (van than)) cau~".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh ((tung tuan) OR (hung tuan)) thong thong ((dan toan) or (van than)) cau*.