Perhaps you should try some spelling variations:
thanh tung » thanh cong
tung luan » dung luan, tang luan, tong luan
luan hung » luan chung, lan hung, luan ung
cong suat » nang suat, cong san, cong cua
cong sat » cong san, cong hat, cong nhat
phan cac » nhan cach, phan dau, phan lap
co sach » bo sach, cuon sach, hoc sach
doi co » doi bo, moi co, hoi co

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi co sach - thanh tung luan hung ((cong sat) or (cong suat)) phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi co sach - thanh tung luan hung ((cong sat) OR (cong suat)) phan cac.
• Adding a wildcard symbol may retrieve word variants: doi co sach - thanh tung luan hung ((cong sat) or (cong suat)) phan cac*.