Perhaps you should try some spelling variations:
theo thuoc » che thuoc, tao thuoc, thu thuoc
thuoc sach » hoc sach, nuoc sach, thuat sach
hanh trung » thanh trung, hanh trang, manh trung
gian chau » gian cham, gian cua, gian cac
cua dang » cua ban
cong san » cong tac
san gian » dan gian, san giao, van gian

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo thuoc sach - hanh trung ((cua dang) or (cua cong)) cong san gian chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo thuoc sach - hanh trung ((cua dang) OR (cua cong)) cong san gian chau.
• Adding a wildcard symbol may retrieve word variants: theo thuoc sach - hanh trung ((cua dang) or (cua cong)) cong san gian chau*.