Perhaps you should try some spelling variations:
nhung tuong » nhung huong, nhung phuong, hung vuong
thanh toan » thanh hoa, thanh san, tinh toan
tieu sach » chieu sach, dien sach, te sach
tang quan » nang quan, tong quan, thong quan
tang luan » dung luan
thanh van » thanh san, thanh phan, thanh nhan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - hanh ((tang quan) OR (tang luan)) nhung tuong ((thanh van) or (thanh toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - hanh ((tang quan) OR (tang luan)) nhung tuong ((thanh van) OR (thanh toan)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sach - hanh ((tang quan) OR (tang luan)) nhung tuong ((thanh van) or (thanh toan)) ban".
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh ((tang quan) OR (tang luan)) nhung tuong ((thanh van) or (thanh toan)) ban*.