Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhung huong » nhung phuong, nhung tuong, nhung cong
chieu sach » chinh sach, chiet tach, chieu sang
theo sach » thuoc sach, te sach, theo lich
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
dan than » dan chan, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((theo sach) or (chieu sach)) - thanh trung cua nhung huong ((dan than) or (dan ca)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((theo sach) OR (chieu sach)) - thanh trung cua nhung huong ((dan than) OR (dan ca)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((theo sach) or (chieu sach)) - thanh trung cua nhung huong ((dan than) or (dan ca)) cau*.