Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
xuat thuong » luat thuong, xuat thong, suat thong
chieu xanh » chieu sach, chieu sang, chieu tinh
cong quang » luong quang, thong quang, duong quang
hoc chieu » hoc thieu, ho chieu, hoc hien
khach san » khach hang, thanh san
quang van » quang ban, quan van, quang uan
hanh san » thanh san, thanh son, khanh son

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu xanh - ((hanh san) or (khach san)) xuat thuong cong quang van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - ((hanh san) OR (khach san)) xuat thuong cong quang van ban.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - ((hanh san) or (khach san)) xuat thuong cong quang van ban*.