Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh tai » thanh tai, hang tai, han tai
ban hanh » ban hang
thuc ban » thuoc ban, thuc dan, thu ban
va cham » va chat
tai cua » thai cua, tai cuc, tri cua
va tham » van tham, va thanh, va thuat
may hoi » may thoi, tay hoi, mai hoi
ky mang » ky nang, ke mang, ky dang
tu sach » thu sach, su sach, te sach
tu sac » tu cac, tu san, tu bac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) OR (tu sach)) ky mang may hoi. hieu ((va tham) or (va cham)) thuc ban hanh tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu sach)) ky mang may hoi. hieu ((va tham) OR (va cham)) thuc ban hanh tai cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) OR (tu sach)) ky mang may hoi. hieu ((va tham) or (va cham)) thuc ban hanh tai cua triet*".