Perhaps you should try some spelling variations:
chiet tach » chieu sach
thanh tinh » nhanh tinh, than kinh, hanh trinh
thanh binh » thai binh, than kinh, tinh binh
trong dan » trong dang, trong tan, trong ban
trong san » trong cac, cong san, dong san
ho chiet » ho chieu, ho thiet, hoc thiet
cua dung » cua dang, cua dong, qua dung
than cao » toan cao, thai cao, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - ((thanh tinh) OR (thanh binh)) cua dung ((trong dan) or (trong san)) than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - ((thanh tinh) OR (thanh binh)) cua dung ((trong dan) OR (trong san)) than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - ((thanh tinh) OR (thanh binh)) cua dung ((trong dan) or (trong san)) than cao".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - ((thanh tinh) OR (thanh binh)) cua dung ((trong dan) or (trong san)) than cao*.