Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
anh tang » anh bang, anh nang, anh sang
anh dang » anh dong, anh dung, anh bang
va thong » va thuong, va phuong, he thong
cong dan » cong san, cong tan, huong dan
than ban » thanh ban, toan ban, nhuan ban
than man » than ma, thanh san, tran manh

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 - ((anh tang) or (anh dang)) va thong cong dan ((than ban) OR (than man))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((anh tang) OR (anh dang)) va thong cong dan ((than ban) OR (than man)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - ((anh tang) or (anh dang)) va thong cong dan ((than ban) OR (than man))".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ((anh tang) or (anh dang)) va thong cong dan ((than ban) OR (than man))*.