Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
hieu quang » thieu quang, hieu quan, hieu qua
cong doanh » cong danh, cong doan, dong doanh
doanh phan » doanh nhan, doan phan, doanh thanh
trung cua » truong cua, trung tuan, trung cap
tong cong » trong cong, cong cong, dung cong
cua tong » cua cong, cua dong, cua nong
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) or (hieu quang)) - thanh trung cua tong cong doanh phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (hieu quang)) - thanh trung cua tong cong doanh phan cac.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (hieu quang)) - thanh trung cua tong cong doanh phan cac*.