Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
cong thanh » dong thanh, cong trinh, truong thanh
doi chieu » doc hieu, doi chi, ho chieu
cua thong » cua thuong, cua khong, cua tong
tung cua » trung cua, tuong cua, dung cua
cong tan » cong tac, cong san, cong ty
than cap » khan cap, thanh lap, thanh cac
phan cac » nhan cach, phan dau, phan lap

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 cua thong ((cong tan) OR (cong thanh)) ((than cap) OR (phan cac))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - thanh tung cua thong ((cong tan) OR (cong thanh)) ((than cap) or (phan cac))~".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh tung cua thong ((cong tan) OR (cong thanh)) ((than cap) or (phan cac))*.