Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
doanh doanh » toan doanh, doanh hoan, doanh thanh
thien danh » thien anh, thien dang, thien thanh
chieu sang » chieu sach, chieu xanh, hieu lang
doanh va » doan va, doanh tai, doanh cua
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien danh) or (chieu sang)) - doanh doanh va thuong cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien danh) OR (chieu sang)) - doanh doanh va thuong cong tac toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien danh) or (chieu sang)) - doanh doanh va thuong cong tac toan ban*.