Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
tranh hang » trinh han, tran hoang, tran hong
dong doanh » dung doanh, trong doanh, doanh doanh
hieu lang » chieu sang, hieu quang, nhieu tang
cua thang » cua hang, cua thanh, xua thang
long doan » cong doan, rong doanh, dong don
hang cua » mang cua, hang ca, huong cua
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: doi ((hieu lang) or (chieu sach)) - tranh hang cua thang ((long doan) OR (dong doanh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu lang) OR (chieu sach)) - tranh hang cua thang ((long doan) OR (dong doanh)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((hieu lang) or (chieu sach)) - tranh hang cua thang ((long doan) OR (dong doanh)) toan ban".
• Adding a wildcard symbol may retrieve word variants: doi ((hieu lang) or (chieu sach)) - tranh hang cua thang ((long doan) OR (dong doanh)) toan ban*.