Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thuc chung » thuc cung, thuc nhung, thung chung
chung cong » nhung cong, chong cong, phung cong
cong toan » cong tan, cong hoan, cong tuan
toan phan » thanh phan, toan ban, hoa phan
tinh cam » trinh cam, tinh cham, tinh nam
phan cac » nhan cach, phan dau, phan lap
tinh am » tinh nam, tinh amin, tinh cham

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((trieu tinh) or (chieu sach)) - ((tinh am) or (tinh cam)) thuc chung cong toan phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((trieu tinh) OR (chieu sach)) - ((tinh am) OR (tinh cam)) thuc chung cong toan phan cac.
• Adding a wildcard symbol may retrieve word variants: hoc ((trieu tinh) or (chieu sach)) - ((tinh am) or (tinh cam)) thuc chung cong toan phan cac*.