Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
cao thuong » cao truong, ca thuong, cho thuong
thong than » thong thanh, thong phan, thong nhan
doi chieu » doc hieu, doi chi, ho chieu
thong tan » thong tran, thong tin, thong van
tung cao » nung cao, truong cao, trung cap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu xanh - thanh tung cao thuong ((thong tan) or (thong than)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - thanh tung cao thuong ((thong tan) OR (thong than)) van ban.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh tung cao thuong ((thong tan) or (thong than)) van ban*.