Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sang tao » hang tai
tham duc » pham duc, tham du, than duc
van dinh » van minh, van dich, va dinh
dinh vai » dinh van, dinh vi, dinh va
tu sach » thu sach, su sach, te sach
sang ma » tang ma, nang ma, mang may
va tham » van tham, va cham, va thanh
duc van » duc va, duc tan, duc manh
vai cua » dai cua, hai cua, lai cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y ((sang ma) or (sang tao)) hoi. lieu va tham duc van dinh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((sang ma) OR (sang tao)) hoi. lieu va tham duc van dinh vai cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach y ((sang ma) or (sang tao)) hoi. lieu va tham duc van dinh vai cua triet*.