Perhaps you should try some spelling variations:
thanh tung » thanh cong
tung tuan » trung tuan, hung tuan, quang tuan
tuan hung » tran hung, luan hung, tuan dung
hoc sach » hoc sinh, hoc cac, hoc anh
cong sat » cong suat, cong hat, cong nhat
cong tac » cong ty
phan cau » phan dau, phan cac, phan tu
doi hoc » doi hoac, dai hoc, hoi hoc

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

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