Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
manh trung » manh tung, thanh trung, manh hung
nhung tung » nhung tuong, nhung dung, nhung vung
thanh toan » thanh hoa, thanh san, tinh toan
hoc chieu » hoc thieu, ho chieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
dan toan » van toan, dan than, manh toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - manh trung cua nhung tung ((dan toan) or (thanh toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - manh trung cua nhung tung ((dan toan) OR (thanh toan)) cao*.