Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
trung tuan » trung thanh, trung tam, tran tuan
doi chieu » doc hieu, doi chi, ho chieu
tung tuan » hung tuan, quang tuan, trang tuan
hoang van » hang va
cong van » cong vang, cong san, song van
toan tap » toan ban

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: doi chieu xanh - thanh ((tung tuan) OR (trung tuan)) nhung ((cong van) OR (hoang van)) toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - thanh ((tung tuan) OR (trung tuan)) nhung ((cong van) or (hoang van)) toan tap~".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh ((tung tuan) OR (trung tuan)) nhung ((cong van) or (hoang van)) toan tap*.