Perhaps you should try some spelling variations:
thuong dong » phuong dong, tuong dong, chuong dong
thuong cong » thong cong, thuong con, truong cong
chieu sach » chinh sach, chieu sang, chieu xanh
nhan dang » nhan dan, phan dang, tran dang
hai quan » tac quan
quan cap » quan cau, quan lap, quang cao
dang ca » dang cac, dan ca, hang ca

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sach) OR (chiet tach)) - nhan dang ca ((thuong cong) or (thuong dong)) hai quan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chiet tach)) - nhan dang ca ((thuong cong) OR (thuong dong)) hai quan cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chiet tach)) - nhan dang ca ((thuong cong) or (thuong dong)) hai quan cap".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) OR (chiet tach)) - nhan dang ca ((thuong cong) or (thuong dong)) hai quan cap*.