Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
trung tuan » trung thanh, trung tam, tran tuan
trung cua » truong cua, trung cap, dung cua
trong ban » trong san, trong tan, trong quan
ho chieu » theo chieu, hoc thieu, doi chieu
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap

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: ho chieu xanh - thanh ((trung cua) OR (trung tuan)) dung trong ban ((than cau) OR (toan cau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - thanh ((trung cua) OR (trung tuan)) dung trong ban ((than cau) or (toan cau))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - thanh ((trung cua) OR (trung tuan)) dung trong ban ((than cau) or (toan cau))*.