Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
trung xay » trong xay, trung tam, trung cap
trung gay » trong gay, trung tam, trung cap
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
toan ban » van 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 ((trung xay) OR (trung gay)) dung cong dan ((toan tap) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - thanh ((trung xay) OR (trung gay)) dung cong dan ((toan tap) or (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh ((trung xay) OR (trung gay)) dung cong dan ((toan tap) or (toan ban))*.