Perhaps you should try some spelling variations:
sang than » cang thang, dang thanh, sang tao
cua triet » cua viet, su triet, va triet
thu sach » thuat sach, thuoc sach, thu hoach
than cua » nhan cua, thai cua, ban cua
tu sach » su sach, te sach, tu cach
van cac » van cau, van bac, dan cac
van hac » van hoc, van ha, van hai
va sang » van sang, vua sang, va nang
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) OR (tu sach)) ky nang x hoi. thien ((van cac) OR (van hac)) nuoc va sang than cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (tu sach)) ky nang x hoi. thien ((van cac) OR (van hac)) nuoc va sang than cua triet".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) OR (tu sach)) ky nang x hoi. thien ((van cac) OR (van hac)) nuoc va sang than cua triet*.